List of Publications

  1. T. Pehk, A. Fomina, R. Veski, On the influence of catalysts to the yield and composition of saturated dicarboxylic acids from the oxidation of oil shale kerogen by air and nitric acid, Chemical and Oil Shale Industry, 1965(6), 21-22.
  2. E. Lippmaa, T. Pehk, J. Past, Carbon-13 double resonance absorption spectra of strained molecules, Proc. Estonian Acad. Sci. Phys. Math., 1967, 16(3), 345-356.
  3. T. Pehk, E. Lippmaa, S. Rang, O. Eisen, Carbon-13 chemical shifts of normal alkenes, Proc. Estonian Acad. Sci. Chem. Geol., 1967, 16(3), 351-354.
  4. T. Pehk, S. Rang, E. Lippmaa, O. Eisen, Carbon-13 chemical shifts of normal alkynes, Proc. Estonian Acad. Sci. Chem. Geol., 16(3), 346-350.
  5. E. Lippmaa, T. Pehk, Carbon-13 chemical shifts and electronic structure of methylene groups in hydrocarbons, Kemian Teollisuus, 1967, 24(12), 1001-1011.
  6. T. Pehk, E. Lippmaa,  Carbon-13 NMR spectra and ω-MO calculations of methoxybenzenes, Proc. Estonian Acad. Sci. Chem. Geol., 1968, 17(3), 195-209.
  7. E. Lippmaa, T. Pehk, Carbon-13 chemical shifts of substituted normal alkanes Proc. Estonian Acad. Sci. Chem. Geol., 1968, 17(3), 210-216.
  8. E. Lippmaa, T. Pehk, Carbon-13 chemical shifts of geometrical (cis-trans) isomers Proc. Estonian Acad. Sci. Chem. Geol., 1968, 17(3), 287-290.
  9. T. Pehk, E. Lippmaa, Carbon-13 chemical shifts of alicyclic compounds Proc. Estonian Acad. Sci. Chem. Geol., 1968, 17(3), 291-294.
  10.  T.Pehk, S. Rang, E. Lippmaa, O. Eisen, Carbon-13 chemical shifts of n-dodecenes and n-dodecynes Proc. Estonian Acad. Sci. Chem. Geol., 1968, 17(3), 294-296.
  11.  T.Pehk, S. Rang, O. Eisen, E. Lippmaa, Carbon-13 chemical shifts of substituted cyclohexenes and cyclopentenes, Proc. Estonian Acad. Sci. Chem. Geol., 1968, 17(3), 296-299.
  12.  O. Reutov, T. Shatkina, E. Lippmaa, T. Pehk, New Method for the Investigation of Molecular Rearrangements by Carbon- 13 NMR Spectroscopy, Dokl. Akad. Nauk SSSR, 1968, 181(6), 1400-1402.
  13. O. Reutov, T. Shatkina, J. Leontjeva, E. Lippmaa, T. Pehk, Isomerisation of cyclohexyl cation in acetolysis reactions of cyclopentylcarbinyl-13C-p-toluenesulfonate and p-nitrobenzenesulfonate Dokl. Akad. Nauk SSSR, 1968, 183(4), 846-849.
  14. V. Koptyug, A. Rezvukhin, E. Lippmaa, T. Pehk, Carbon-13 NMR spectra and excess positive charge densities for mesitylenonium ion , Tetrahedron Letters, 1968, 4009-4012.
  15.  J. Bondar, A. Fomina, T. Pehk, Analysis of gas mixtures formed at the oxidation of the organic constituent of oil shale kukersite with nitric acid and athmospheric oxygen, Proc. Estonian Acad. Sci. Chem. Geol., 1969, 18(3), 237-241.
  16. M. Mägi, E. Lippmaa, T. Pehk, S. Shevelev, V. Jerashko, A. Fainsilberg, 14N and 13C NMR spectra of anions from the aliphatic nitro compounds, Izvestia AN SSSR, Khimia, 1969(3), 730.
  17. C. Rappe, E. Lippmaa, T. Pehk, K. Andersson, The use of carbon-13 shifts in the structural determination of α,β-unsaturated acids, Acta Chemica Scandinavica, 1969, 23, 1447-1450.
  18. V. Koptyug, E. Lippmaa, A. Rezvukhin, T. Pehk,About the distribution of positive charge in arenonium ions, Izvestia AN SSSR, Khimia, 1969(3), 285-289.
  19. A. Isajev, T. Jegorova, I. Shleider, E. Lippmaa, T. Pehk, V. Koptjug, Migration of 13C label in 2,3,4,4,5,6-hexamethylcyclohexadienone-1-13C, Dokl. Akad. Nauk SSSR, 1969, 189(6), 1258-1261.
  20. O. Reutov, T. Shatkina, E. Lippmaa, T. Pehk, A new method for the study of molecular rearrangements with the use of carbon-13 double resonance NMR spectra, Tetrahedron, 1969, 25, 5757-5760.
  21.  G. Engelhardt, E. Lippmaa, T. Pehk, 13C-NMR-spectroskopische untersuchungen an funktionell substituierten alkanen, Journal für Praktische Chemie, 1970, 312,(5), 935-946.
  22. T. Pehk, E. Lippmaa, N. Belikova, A. Plate, Carbon-13 NMR chemical shifts in the bicyclo[2.2.1]heptane and bicyclo[2.2.1]-heptene methyl and methylene derivatives, Dokl. Akad. Nauk SSSR, 1970, 195(4), 885-888.
  23. E. Lippmaa, T. Pehk, J. Paasivirta,.N. Belikova, A. Plate, Carbon-13 chemical shifts of bicyclic compounds, Organic Magnetic Resonance, 1970, 2, 581-604.
  24.  J. Siigur, T. Pehk, Ü. Haldna and E. Lippmaa, Basicity of acetic acid studied by 13C nuclear magnetic double resonance method,  Organic Reactivity, 1970, 7, 179-190.
  25.  H. Rosenberger, M. Pettig, K. Madeja, T. Pehk, E. Lippmaa, Kernresonanz-untersuchungen am 1.10-phenanthrolin und seinen komplex-verbindungen-IV: 13C-resonanzen des freien und protonierten 1.10-phenanthrolins ,Organic Magnetic Resonance, 1970, 2, 329-336.
  26.  T. Pehk, E. Lippmaa, The carbon-13 chemical shifts of hydroxybenzenes and hydroxydiphenyls, Proc. Estonian Acad. Sci. Chem. Geol., 1970, 19(4), 371-374.
  27.  A. Lovtsova, T. Shatkina, O. Reutov, E. Lippmaa, T. Pehk, Cyclohexyl cation isomerisation in the reactions of cyclopentylcarbinol-1-13C and cyclopentylcarbinyl-1-13C-chloride, Dokl. Akad. Nauk SSSR, 1970.
  28.  E. Lippmaa, T. Pehk, K. Andersson, C. Rappe, Carbon-13 chemical shifts of α,β-unsaturated acids, Organic Magnetic Resonance, 1970, 2, 109-121.
  29.  E. Lippmaa, T. Pehk, A. Buchachenko, S. Rykov, Chemically induced dynamic nuclear polarization of 13C nuclei in the thermal decomposition of organic peroxides, Chemical Physics Letters, 1970, 5(8), 521-524.
  30.  T. Pehk, Ü. Lille, E. Lippmaa, L. Bitter, Carbon-13 chemical shifts of alkyl resorcinols, Proc. Estonian Acad. Sci. Chem. Geol., 1970, 19(4), 283-288.
  31.   E. Lippmaa, T. Pehk, A. Buchachenko, S. Rykov, Chemical polarization of 13C nuclei in thermal decomposition of organic peroxides, Dokl. Akad. Nauk SSSR, 1970, 195(3), 632-637.
  32.  T. Shatkina, A. Lovtsova, O. Reutov, E. Lippmaa, T. Pehk,Dehydration of cyclopentyl carbinol-1-13C, Izvestia AN SSSR, Khimia, 1970(3), 726. 
  33.  E. Lippmaa, T. Pehk, T. Saluvere, Chemical polarization of 13C and 15N nuclei in thermal decomposition reactions, Ind. Chim. Belge, 1971, 36(12), 1070-1071.
  34. T.Pehk, E. Lippmaa, Carbon-13 Chemical shifts of monosubstituted cyclohexanes, Organic Magnetic Resonance, 1971, 3, 679-687.
  35. M. Shemyakin, L. Neiman, S. Zhukova, Y. Nekrasov, T. Pehk, E. Lippmaa, Isotopic study of dual reactivity and tautomerism of triad A=B-AX systems- II: The use of 13C for the determination of substitution mechanisms in allylic and methyleneazomethine system, Tetrahedron, 1971, 27, 2811-2821.
  36.  T. Pehk, E. Lippmaa, V. Sevostjanova, M. Krayuschkin, A. Tarasova, 13C NMR spectra of adamantane derivatives, Organic Magnetic Resonance, 1971, 3, 783-790.
  37. E. Lippmaa, T. Pehk, A. Olivson, A. Sügis, Relaxation and chemical polarization of 13C nuclei, Magnetic Resonance and Related Phenoma, Proceedings of the 16th Congress AMPERE, 1970, 309-311.
  38. G. Engelhardt, H. Jancke, M. Mägi, T. Pehk, E. Lippmaa, Über die 1H-, 13C- und 29Si- NMR chemischen verschiebungen einiger linearer verzweigter und cyclischer methylsiloxanverbindungen, J. Organometal. Chem., 1971, 28, 293-300.
  39. N. Sysoyeva, E. Lippmaa, T. Pehk, A. Buchachenko, NMR studies of paramagnetic complexes of radicals with organic ligands (III). Paramagnetic shifts of 13C nuclei, Zh. Strukt. Khim., 1972, 13, 419-423.
  40. N. Belikova, I. Gazuko, A. Platé, E. Lippmaa, T. Pehk, Dehydroxylation of alkylbicyclo[2.2.1]heptanols and some rearrangements of 7-methylene- and 7-ethylidenebicyclo[2.2.1]heptanes, Zh. Org. Khim., 1972, 8, 1847-1852.
  41. A. Lovtsova, T. Shatkina, T. Pehk, E. Lippmaa, O. Reutov, Reaction of 1-13C-cyclohexanol with hydrochloric acid and the Lucas reagent,  Izvestia AN SSSR, Khimia, 1972(3), 618-620.
  42. T. Shatkina, A. Lovtsova, E. Leontjeva, E. Lippmaa, T. Pehk, O. Reutov, Isomerization of carbocations, formed during acetolysis of 5-hexenyl-1-13C-benzenesulphonate and cyclopentylcarbinyl-13C-p-nitrobenzene-sulphonate, Izvestia AN SSSR, Khimia, 1972(2), 485.
  43. T. Shatkina, E. Leontyeva, E. Lippmaa, T. Pehk, O. Reutov, About the influence of the leaving group on isomerization of carbocations, formed in arylsulphonate solvolysis, Dokl. Akad. Nauk SSSR, 1972, 203(4), 852-855.
  44. T. Shatkina, E. Leontyeva, E. Lippmaa, T. Pehk, O. Reutov, Acetolysis reactions of cyclobutylcarbinyl-13Cp-toluenesulphonate and cyclobutyl-carbinyl-13Cnitrobenzenesulphonate, Dokl. Akad. Nauk SSSR, 1972, 207(5), 1144-1146.
  45. R. Radeglia, G. Engelhardt, E. Lippmaa, T. Pehk, K.-D. Nolte, S. Dähne, 13C-NMR—Chemische verschiebungen von polymethinen. Elektronstruktur und  lösungsmitteleinfluss, Organic Magnetic Resonance, 1972, 4, 571-576.
  46. E. Männik, A. Fomina, T. Pehk, A. Männik, About the Composition of dimethyl esters of dicarboxylic acids from the oxidation of oil shale kerogen, Solid Fuel Chemistry, 1972(3), 142-144.
  47. E. Lippmaa, T. Pehk, T. Saluvere, M. Mägi, Chemical polarization of 15N and 13C nuclei in diazo coupling reactions, Org. Magn. Resonance, 1973, 5(9), 441-444.
  48. E. Lippmaa, T. Pehk, J. Paasivirta, Carbon-13 chemical shifts of substituted nortricyclenes, Org. Magn. Resonance, 1973, 5(6), 277-283 (1973).
  49. G. Nikiforov, Sh. Markaryan, L. Plekhanova, B. Sviridov, S. Rykov, V. Ershov, A. Buchachenko, T. Pehk, T. Saluvere, E. Lippmaa, CIDNP of 13C and 1H nuclei in the reactions of cyclohexadienone carbenes, Org. Magn. Resonance  1973, 5(7), 339-342.
  50. T. Pehk, M. Alla, E. Lippmaa, Relation between the carbon chemical shifts and the J(CH) spin-spin coupling constants, Org. Magn. Resonance, 1973, 5(7), 351-352.
  51. R. Radeglia, W. Storek, G. Engelhardt, F. Ritschl, E. Lippmaa, T. Pehk, M. Mägi, D. Martin, Struktur-reaktivitätsuntersuchungen mit heterosubstituierten nitrilen (VII). 13C, 14N und 19F-NMR-spektroskopische untersuchungen an verbindungen vom typ Ar–X–CºN, Org. Magn. Resonance, 1973, 5(9), 419-422.
  52. E. Lippmaa, T. Saluvere, T. Pehk, A. Olivson, Chemical polarization of 13C and 15N nuclei in the thermal decomposition of diazoaminobenzene (1,3-diphenyltriazene), Org. Magn. Resonance, 1973,5(9), 429-436 (1973)
  53. N. Belikova, M. Ordubadi, A. Platé, T. Pehk, E. Lippmaa, Elimination reactions of hydroxy-, tosyloxy- and acetoxy-bicyclo[4.2.1]nonanes, Zh. Org. Khim., 1973, 9, 1855-1863.
  54. Ü. Lille, V. Võsotskaja, N. Kaidash, M. Soo, T. Pehk, On the composition of neutral oxygen compounds of the 300-360o fraction of Estonian oil shale oil, Chemistry and Technology of Oil Shale, Tallinn, 1973, p.78-87.
  55.  Ü. Lille, V. Võsotskaja, T. Pehk, A. Murd, On the properties of some 2,4,6-triones, Chemistry and Technology of Oil Shale, Tallinn, 1973, p.134-142.
  56. A. Lovtsova, T. Shatkina, T. Pehk, E. Lippmaa, O. Reutov, Reaction of Cyclobutylcarbinol-1-13C with Hydrochloric Acid and the Lucas Reagent, Izvestia AN SSSR, Khimia, 1973(5), 1183-1184.
  57. Ü. Lille, T. Purre, S. Doilov, T. Pehk, A. Murd, N. Kaydash, V. Vysotskaya, On the Formation of Alkyl Resorcinols by Thermal Decomposition of Baltic Oil Shale, Proceedings of the Tallinn Technical University, Chemistry and Chemical Engineering, 1973, 332, 185-197.
  58. Ü. Lille, T. Pehk, H. Kundel and L. Bitter,Determination of a new group of compounds in oil shale oil phenols, Proc. Estonian Acad. Sci. Chem. Geol., 1973, 22(1), 86-88.
  59. Ü. Lille, T. Pehk, T. Purre, L. Bitter, Examination of the Structure of Heavy Shale Oil by Means of NMR Spectroscopy, Proc. Estonian Acad. Sci. Chem. Geol., 1973, 22(1), 17-25.
  60. G. Nikiforov, Sh. Markaryan, L. Plekhanova, B. Sviridov, T. Pehk, S.Rykov, E. Lippmaa, V. Ershov, A. Buchachenko, Chemical Polarization of Nuclei in the Reactions of Cyclohexadienone Carbenes with Halogenated Organic Compounds, Izvestia AN SSSR, Khimia, 1974(1), 93-98.
  61. N. Belikova, A. Bobyleva, A. Kalinichenko, A. Platé, T. Pehk, E. Lippmaa, Addition Reaction of Acetic Acid to cis-2-ethylidenebicyclo[2.2.1]heptane, Zh. Org. Chem., 1974, 10(2), 239-246.
  62. N. Belikova, A. Bobyleva, A. Kalinichenko, A. Platé, T. Pehk, E. Lippmaa, Addition of Acetic Acid to Unsaturated Compounds of the Bicyclo[2.2.2]octane Series Zh. Org. Chem., 1974, 10(7), 1449-1454 (1974)
  63. T. Pehk, E. Lippmaa, V. Baklan, T. Utotchka, A. Yurchenko, Comparison of Carbon-13 Chemical Shifts in Bicyclo[3.3.1]nonane and Adamantane Derivatives, Proc. Estonian Acad. Sci. Phys. Math., 1974, 23(4), 425-427.
  64. O. Kirret, E. Lippmaa, T. Pehk, 13C NMR analysis of polyamide fibers, Proc. Estonian Acad. Sci. Chem. Geol., 1973, 23(3), 269-271.
  65. H. Lippmaa, K. Kiisler, T. Pehk, Investigation of Phenol- Formaldehyde Polycondensation Products with Spectroscopic Methods I, Proceedings of the Tallinn Technical University, Chemistry and Chemical Engineering, 1974, 356, 81-92.
  66. H. Lippmaa, T. Pehk, K. Kiisler, P. Christjanson, Investigation of Phenol- Formaldehyde Polycondensation Products with Spectroscopic Methods II Polycondensation of resorcinol and orcinol and the influence of caprolactam on their structure, Proceedings of the Tallinn Technical University, Chemistry and Chemical Engineering, 1974, 356, 93-107.
  67. H. Lippmaa, T. Pehk, K. Kiisler, P. Christjanson, Investigation of Phenol- Formaldehyde Polycondensation Products with Spectroscopic Methods III Polycondensates of resorcinol with N-hydroxymethylenecaprolactam, Proceedings of the Tallinn Technical University, Chemistry and Chemical Engineering, 1974, 356, 109-122.
  68. T. Pehk,  A. Laht, I. Musajev, E. Kurashova, P. Sanin, Carbon-13 Chemical Shifts of Stereoisomeric Methylbicyclo[4.4.0]decanes, Neftekhimija, 1974, 14(4), 541-546.
  69. E. Lippmaa, M. Mägi, T. Pehk, 29Si NMR and d-orbital participation, TAMU NMR Newsletter,1974, 193, 8.
  70. T. Pehk, E. Männik, A. Fomina, A. Laht, A. Männik, Determination of the Structures of Saturated Tricarboxylic Acids by the 13C NMR Spectroscopy, Solid Fuel Chemistry, 1974(1), 102-107.
  71. T. Shatkina, L. Lovtsova, T. Pehk, E. Lippmaa, O. Reutov, Investigation of the reaction of 13C-labeled mercury cyclohexanoate with cyclohexanoyl peroxide, Dokl. Akad. Nauk SSSR, 1975, 220(1), 139-141.
  72. I. Matveeva, I. Sokolova, T. Pehk, Al. Petrov, Synthesis and isomeric transformations of dimethylbicyclo[3.2.1]octanes, Neftekhimiya, 1975, 15(1), 17-23.
  73. I. Matveeva, I. Sokolova, T. Pehk, Al. Petrov,Synthesis, stereochemistry and isomeric transformations of 6,7-dimethylbicyclo[3.2.1]-octane, Neftekhimiya, 1975, 15(5), 641-645.
  74. I. Matveeva, I. Sokolova, T. Pehk, Al. Petrov, Synthesis, stereochemistry and isomeric transformations of 1,6 and 1,7-dimethylbicyclo[3.2.1]-octane, Neftekhimiya, 1975, 15(5), 646-652.
  75. S. Berman, Yu. Denisov, T. Pehk, Al. Petrov, Stereochemistry and thermodynamic stability of spatial isomers of C12H18-C13H20 tetracyclic hydrocarbons,. Neftekhimiya, 1975, 15(6), 795-803.
  76. T. Pehk,  A. Laht, I. Musaev, E. Kurashova, P. Sanin, Chemical Shifts of carbon-13 nuclei of dimethylbicyclo[4.4.0]decane stereoisomers: 2,5-; 2,7-; 2,10-; 3,4-; 3,8-; 3,9-dimethylbicyclodecanes, Neftekhimiya, 1975, 15(3), 329-336.
  77. N. Vorobjeva, O. Arefjev, T. Pehk, Yu. Denisov, Al. Petrov, On the isomerization mechanism and kinetics of tricycloundecanes,Neftekhimiya, 1975, 15(5), 659-666.
  78. T. Pehk, E. Lippmaa, I. Sokolova, N. Vorobyeva, E. Gervitch, A. Bobyleva, A. Kalinichenko and N. Belikova, Chemical shifts of the carbon-13 nuclei in bicyclo[2.2.2]octane derivatives, Zh. Org. Khim., 1976, 12(6), 1201-1206.
  79. A. Yurchenko, M. Novikova, E. Lippmaa, T. Pehk, Cycle expansion in 3-substituted derivatives of homoadamantane, Zh. Org. Khim., 1976, 12, 2137-2141.
  80. T. Pehk, E. Lippmaa, E. Lukevic, L. Simchenko, Nitrogen-containing organosilicon compounds (LV). 13C and 29Si spectra of (2-aminoethoxy)silanes, Zh. Obsch. Khim., 1976, 46, 602-603.
  81. T. Pehk, H. Kooskora, E. Lippmaa, V. Lysenkov, I. Bardyshev), 13C chemical shifts of alkylcyclohexenes, Izv. AN BSSR, Ser. Khim. Nauk 1976(2), 27-32.
  82. T. Pehk, H. Kooskora, E. Lippmaa, Carbon-13 chemical shifts and conformations of dimethylcyclohexanols, Org. Magn. Resonance,1976,8(1), 5-10.
  83. E. Lippmaa, T. Pehk, N. Belikova, A. Bobyleva, A. Kalinichenko, M. Ordubadi, A. Platé, Carbon-13 chemical shifts of bicyclo[3.2.1]octane and bicyclo[2.2.1]heptane derivatives), Org. Magn. Resonance, 1976, 8, 74-78.
  84. J. Järv, T. Pehk, A. Aaviksaar, D. Lobanov, N. Godovikov), Theσ* constants of ionic substituents, Izvestia AN SSSR, Khimia, 1976(7), 1649-1650.
  85. G. Kagramanova, S. Pustil'nikova, T. Pehk, Yu. Denisov, Al. Petrov, Sesquiterpane hydrocarbons of petroleums, Neftekhimiya, 1976, 16(1), 18-22.
  86.  E. Gervitch, I. Sokolova, T. Pehk, Al. Petrov, Synthesis, stereochemistry and thermodynamic stability of C10H18 hydrocarbons with the bicyclo[2.2.2]octane sceleton Neftekhimiya, 1976, 16(4), 491-498.
  87. T. Pehk, A. Laht, I. Musaev, E. Kurashova, P. Sanin, Chemical shifts in carbon-13 nuclei of stereoisomers of dimethylbicyclo[4.4.0]decanes (2,3-, 2,4-, 2,8-, and 2,9-dimethylbicyclo[4.4.0]decanes), Neftekhimiya, 1976, 16(5), 663-667.
  88. T. Pehk,  E. Lippmaa, Carbon-13 spin-lattice relaxation in diastereoisomers, Magn. Reson. Relat. Phenom., Proc. 19th Congr. Ampere, 1976, 329-32.
  89. H. Lippmaa, T. Pehk, P. Christjanson, The study of the structures of phenol-formaldehyde polycondensation resins by spectroscopic methods. IV. Determination of the composition of chromatographic fractions of resorcinol polycondensates with N-(hydroxymethyl)caprolactam  1976, 405, 73-91.
  90. H. Lippmaa, T. Pehk, P. Christjanson, K. Siimer, Reaction of amidomethylation VI. Amidomethylation products of amines, Proceedings of the TallinnTechnicalUniversity, Chemistry and Chemical Engineering, 1976, 405, 67-72
  91. H. Lippmaa, T. Pehk, P. Christjanson, Investigation of phenol-formaldehyde polycondensation products with spectroscopic methods V. Analysis and structure determination of chromatographic fractions of polycondensates of 5-methylresorcinol with N-hydroxymethylcaprolactam, Proceedings of the Tallinn Technical University, Chemistry and Chemical Engineering, 1977, 427, 31-39.
  92. V. Chernyshov, T. Pehk, H. Rang, K. Lääts, Study of ionic-catalytic telomerization. XIV. Telomerization reaction of 2-chloro-trans-3-pentene and 1-pentene, Zh. Org. Khim., 1977, 13(11), 2300-2304.
  93. T. Pehk,  H. Kooskora, E. Lippmaa, V. Lysenkov, G. Deshtshits, I. Bardyshev, 13C chemical shifts of bicyclo[4.1.0]heptane derivatives, Izv. AN BSSR, Ser. Khim. Nauk, 1977(1), 96-103.
  94. A. Bobyleva, N. Dubitskaya, N. Belikova, T. Pehk, E. Lippmaa, A. Platé 5-Ethylidene-bicyclo[2.2.1]hept-2-ene addition reaction with organic acids, Zh. Org. Khim., 1977, 13(10), 2085-2092.
  95. N. Belikova, A. Bobyleva, A. Dzigirchanova, T. Pehk, E. Lippmaa,  4‑Methylenebicyclo-[2.2.2]oct-2-ene addition reaction with organic acids, Zh. Org. Khim., 1977, 13(9), 1898-1903.
  96. N. Vorob'eva, Z. Zemskova, T. Pehk, Al. Petrov, Isomerization of tricyclododecanes, Neftekhimiya, 1977 17(1), 22-30.
  97. T. Shatkina, A. Lovtsova, K. Mazel, T. Pehk, E. Lippmaa, O. Reutov, Ester formation in the thermal decomposition of cycloalkylacetic acid peroxides Doklady AN SSSR, 1977, 237(2), 368-370.
  98. H. Lippmaa, P. Christjanson, T. Pehk, Investigation of phenol-formaldehyde polycondensation products with spectroscopic methods VI. Gel chromatographic analysis of 5-methylresorcinol-formaldehyde polycondensates, Proceedings of the TallinnTechnicalUniversity, Chemistry and Chemical Engineering, 1978, 459, 49-60.
  99. V. Chernyshov, T. Pehk, H. Rang, K. Lääts, About the composition of the telomerization product of 2-chloro-trans-3-pentene with 1-hexyne, Proc. Estonian Acad. Sci. Chem., 1978, 27(1), 42-43.
  100. T. Pehk, H. Rang, V. Chernyshov, A. Erm and K. Lääts, Application of the carbon nmr spectroscopy in the structure analysis of telomerisation products, Proc. Estonian Acad. Sci. Chem., 1978, 27(3), 184-188.
  101. K. Lääts, V. Chernyshov, T. Pehk, H. Rang and A. Erm, Telomerization of gem-dialkyl and β-alkyl substituted 1-alkenes, Zh. Org. Khim., 1978, 14(5), 913-920.
  102. T. Saks, T. Pehk, H. Rang, A. Ivanov, The composition of irone synthesized by telomerization reaction Proc. Estonian Acad. Sci. Chem., 1978, 27(4), 230-234.
  103. N. Belikova, S. Lermontov, T. Pehk, E. Lippmaa, A. Platé,Oxymercuration-demercuration of bridged unsaturated hydrocarbons, Zh. Org. Khim., 1978, 14(11), 2273-2280.
  104.  N. Belikova, S. Lermontov, T. Pehk, E. Lippmaa, A. Platé, Ionization dependence in the addition direction of mercuric acetate to 5‑ethylidene-2-norbornene, Zh. Org. Khim., 1978, 14(4), 884-885.
  105. Bobyleva, A. Dzigirhanova, N. Belikova, T. Pehk, E. Lippmaa, A. Platé, T. Gubarevich, Reaction of bicyclo[2.2.2]octa-2,5-diene with acetic acid Zh. Org. Khim., 1978, 14(5), 980-984.
  106. T. Pehk,  E. Lippmaa, L. Lavrova, N. Vinogradova, N. Klimova, M. Shmaryan and A. Skol'dunov, Use of 13C NMR spectroscopy for the analysis of stereoisomeric 2,5-disubstituted derivatives of adamantane, Zh. Org. Khim., 1978, 14(8), 1634-1640.
  107. E. Lippmaa, M. Alla, T. Pehk, G. Engelhardt, Solid state high resolution NMR spectroscopy of spin 1/2 nuclei (13C, 29Si, 119Sn) in organic compounds, J. Am. Chem. Soc., 1978, 100(6), 1929-1930.
  108. V. Pestunovich, S. Tandura, M. Voronkov, G. Engelhardt, E. Lippmaa, T. Pehk, V. Sidorkin, G. Zelchan,  V. Baryshok,29Si NMR of Si-substituted silatranes and triethoxysilanes, Doklady AN SSSR, 1978, 240(4), 914-917.
  109. H. Oja, H Lippmaa T. Pehk, P. Christjanson, Amidomethylation reactions. X. Structure determination of N,N',N"-[(1,3-dihydroxyphenyl)-2,4,6-trimethyl]-tri-ε-caprolactam with spectroscopic methods, Proceedings of the Tallinn Technical University, Chemistry and Chemical Engineering, 1978, 459, 19-28.
  110. A. Erm, T. Pehk, K. Siirde, K. Lääts, On the composition of the synthetic citral Symp. Pap. of 11th IUPAC Int. Symp. Chem. Nat. Prod., 1978, 82-5.
  111. T. Pehk, Conformational analysis and carbon-13 spin lattice relaxation in menthol isomers, Magnetic resonance and related phenomena. Proceedings of the XXth congress AMPERE, Springer, 1979, p.496.
  112. T. Pehk, E. Lippmaa, V. Lysenkov, I. Bardyshev, 13C NMR spectroscopy of terpenoids, related to menthane, Zh. Org. Khim., 1979, 15(9), 1877-1887.
  113. E. Muks, S. Kabral, A. Erm, T. Pehk, T. Välimäe, K. Lääts, Study of ionic-catalytic telomerization. XIX. Cotelomerization of 1-chloro-2-methyl-2-butene and 3-chloro-2-methyl-1-butene with 1-chloro-3-methyl-2-butene, Zh. Org. Khim., 1979, 15(11), 2249-2252.
  114. K. Siirde, T. Välimae, T. Pehk, A. Erm, H. Rang, K. Lääts, Study of ion-catalytic telomerization. XVIII. Composition of synthetic 6-methylcitral), Zh. Org. Khim., 1979,  15(10), 2028-34.
  115. H. Rang, V. Chernyshev, T. Pehk, A. Erm, K. Lääts, Study of ionic-catalytic telomerization. XVI. Telomerization of 2-chloro-trans-3-pentene with 2,3-dimethyl-1-butene, Zh. Org. Khim., 1979, 15(4),  686-91.
  116. A. Erm, K. Siirde, T. Pehk, K. Lääts, Study of ion-catalytic telomerization. XVII. Composition of synthetic citral, Zh. Org. Khim., 1979, 15(8), 1593-1598.
  117. N. Belikova, M. Ordubadi, A. Bobyleva, I. Dubitskaya, L. Loshkaryeva, T. Pehk, E. Lippmaa, A. Platé, Reduction and catalytic hydrogenation of 1-methyl and 1-ethyltricyclo[2.2.1.02,6]-heptan-3-one. Synthesis of 4-alkylbicyclo[2.2.1]heptan-2-ones, Zh. Org. Khim., 1979, 15(2), 320-327.
  118. I. Sokolova, E. Gervits, I. Matveeva, T. Pehk, Al. Petrov, Synthesis, stereochemistry, and equilibrium ratios of 2,4-, 2,7-, and 3,9-dimethylbicyclo-[3.3.1]nonanes, Neftekhimiya, 1979, 19(2), 170-176.
  119. Sokolova, I. Matveeva, T. Pehk, Al. Petrov, Stereochemistry and equilibrium ratios of stereoisomers of 1,9-dimethylbicyclo-[4.3.0]nonane, Neftekhimiya, 1979, 19(2), 163-169.
  120. N. Belikova, S. Lermontov, T. Skornyakova, T. Pehk, E. Lippmaa, A. Platé, Solvent influence in mercuric acetate addition to 5‑ethylidenebicyclo[2.2.1]hept-2-ene and homologues, Zh. Org. Khim., 1979, 15(3), 492-504.
  121. Sokolova, E. Gervits, I. Matveeva, T. Pehk, Al. Petrov, Synthesis, stereochemistry, and equilibrium ratios of 2,4-, 2,7-, and 3,9-dimethyl-bicyclo[3.3.1]nonanes, Neftekhimiya, 1979, 19(2), 170-176.
  122. A. Bobyleva, N. Belikova, A. Kalinichenko, A. Baryshnikov, N. Dubitskaya, T. Pehk, E. Lippmaa, A. Platé, Acetic acid addition to 2-vinylbicyclo[2.2.1]heptane, 5-vinylbicyclo[2.2.1]hept-2-ene and 1‑vinyltricyclo[2.2.1.02,6]heptane, Zh. Org. Khim., 1980, 16(8), 1645-1653.
  123. E. Arak, U. Mäeorg, T. Pehk, Variability of the composition of the essential oil from the wild camomile, Uch. Zap. Tartus. Un.-ta, 1980, 523, 6-18.
  124. S. Lermontov, N. Belikova, T. Skornyakova, T. Pehk, E. Lippmaa, A. Platé, Solvent effects in the direction and rate of mercuric acetate addition to unsaturated hydrocarbons, Zh. Org. Khim., 1980, 16(11), 2322-2329.
  125. A. Bardyshev, I. Kozlov, T. Välimae, T. Pehk, Hydroamination of L-camphor with aliphatic nitriles, Izv. AN BSSR, Ser. Khim. Nauk,1980(4), 71-76.
  126. A. Bardyshev, I. Kozlov, T. Välimae, T. Pehk, Synthesis and study of the structure of new N-substituted 2-methyl-5-(1-methylethyl)cyclohexylamines, Khimiya Prirodnykh Soedinenii, 1980(4), 546-553.
  127. S. Berman, T. Pehk, Al. Petrov, Stereochemistry and thermodynamic stability of steric isomers of tetrahydrotricyclopentadiene, Neftekhimiya, 1980, 20(2), 180-182.
  128. G. C. Levy, T. Pehk, E. Lippmaa, 13C and 15N NMR study of acyclic vicinal diastereoisomers. Conformational effects, Org. Magn. Resonance, 1980, 14(3), 214-219.
  129. G. C. Levy, T. Pehk, P. R. Srinivasan, Quantitative nitrogen-15 NMR spectroscopy, Organic Magnetic Resonance, 1980, 14(2), 129-132.
  130. Bardyshev, A. Degtyarenko, T. Pehk, S. Makhnach, Study of the properties and carbon-13 NMR spectra of pinifolic acid and its derivatives, Khimiya Prirodnykh Soedinenii, 1981(5),  568-572.
  131. N. Kozlov, T. Pehk, T. Välimae, Reductive amination of l-menthol by aliphatic nitriles, Khimiya Prirodnykh Soedinenii, 1981(3), 312-17.
  132. V. Lysenkov, T. Pehk, E. Lippmaa, T. Zheleznyak, 13C chemical shifts and structure of 6,6-dimethylbicyclo[3.1.1]heptane, Zh. Org. Khim., 1981, 17(8), 1616-1626.
  133. N. Vorob'eva, Z. Zemskova, T. Pehk, Al. Petrov, Synthesis, stereochemistry, and isomeric transformations of tricyclo[7.4.1.02,6]tridecane, Neftekhimiya, 1981, 21(4), 496-502.
  134. V. Zubenko, N. Vorob'eva, Z. Zemskova, T. Pehk, Al. Petrov, Equilibrium of cis- and trans-isomers of octahydrophenanthrenes as structural fragments of monoaromatic steranes, Neftekhimiya, 1981, 21(3), 323-328.
  135. N. Vorob'eva, Z. Zemskova, T. Pehk, Al. Petrov, Synthesis, stereochemistry, and isomeric transformations of tricyclo[7.3.1.02,7]tridecane, Neftekhimiya, 1981, 21(5), 651-657.
  136. N. Belikova, V. Arbuzov, T. Pehk, A. Bobyleva, A. Plate, Synthesis of exo- and endo-(formyloxy)brexanes. Transannular cyclization in reactions of formic acid with cis-bicyclo[4.3.0]nona-3,7-diene, Zh. Org. Khim., 1981, 17(11), 2457-2459.
  137. A. Bobyleva, N. Belikova, S. Baranova, V. Arbuzov, T. Pehk, A. Plate, Rearrangement of cis-bicyclo[4.3.0]nona-3,7-diene under the conditions of electrophilic addition. A simple method for the synthesis of exo-brendan-2-ol acetate, Zh. Org. Khim., 1981, 17(6), 1333-1334.
  138. A. Bobyleva, N. Dubitskaya, M. Bovina, T. Välimäe, T. Pehk, N. Belikova, A. Plate, Reaction of 2,3-dimethylenebicyclo[2.2.1]heptane with acetic acid, Vestnik Moskovskogo Universiteta, Seriya 2:  Khimiya, 1981, 22(4), 378-82.
  139. Bardyshev, A. Degtyarenko, T. Pehk, G. Yankovskaya, Properties and structure of diterpenoid acids of the pimarane and isopimarane series, Zh. Org. Khim., 1981, 17(12), 2568-73.
  140. T. Pehk, V. Chernyshev, T. Välimäe, H. Rang, K. Lääts, Use of carbon-13 NMR spectroscopy for determination of the structure and configuration of diastereoisomers of aromatic telomerization products, Proc. Estonian Acad. Sci. Chem., 1982, 31(4), 258-262.
  141. T. Pehk, T. Välimäe, A. Samel, M. Lopp, Ü. Lille, E. Lippmaa, 13C NMR spectroscopy of prostaglandins, Proc. Estonian Acad. Sci. Chem., 1982, 31(2), 85-90.
  142. K. Lääts, V. Chernyshev, T. Pehk, H. Rang, A. Erm, Composition of the saponification product of a 2-methyl-2-butene-4-chloro-trans-2-pentene telomer monoadduct, Proc. Estonian Acad. Sci. Chem., 1982, 31(2), 145-146.
  143. K. Lääts, H. Rang, V. Chernyshev, T. Pehk, Composition of the telomerization product of 1-chloro-3-methyl-2-butene and 2,3-dimethyl-1-butene, Proc. Estonian Acad. Sci. Chem., 1982, 31(2), 147-148.
  144. N. Kozlov, T. Pehk, Novel Beckmann rearrangement of camphor oxime, Zh. Org. Khim., 1982, 18(5), 1118-19.
  145. L. F. Titova, Y. V. Bazhanov, N. A. Belikova, L. F. Lapuha, T. J. Pehk, E. T. Lippmaa, Structure of the products formed in thermal codimerization of butadiene with methylcyclopentadienes, Zh. Org. Khim., 1982, 18(4), 830-835.
  146. T. Pehk, S. Pustil'nikova, N. Abryutina, G. Kayukova, Al. Petrov, Carbon-13 NMR spectra of epimeric steranes, Neftekhimiya, 1982, 22(1), 21-9.
  147. Bardyshev, A. Degtyarenko, T. Pehk, 8,13-Epoxylabd-14-en-19-oic acid - a component of Pinus silvestris needles, Khimiya Prirodnykh Soedinenii, 1982(4), 480-482.
  148. V. Lysenkov, T. Pehk, A. Klyuev, T. Zheleznyak, Stereochemistry of the nucleophilic replacement of chlorine atom of 2-endo-bornyl chloride by an amino group, Zh. Org. Khim., 1982, 18(12), 2617.
  149. T. Pehk, A. Laht, E. Lippmaa, Conformational and long range low-field steric deuterium isotope effects on carbon chemical shifts, Org. Magn. Resonance, 1982, 19(1), 21-24.
  150. N. Kozlov, G. Kalechits, T. Pehk, B. Udarov, Reductive amination of 4-methylcyclohexanol by aliphatic nitriles, Zhurnal Obshchei Khimii, 1982, 52(10), 2332-2337.
  151. V. Arbuzov, T. Pehk, N. Belikova, A. Bobyleva, A. Plate, Hydroboration and oxymercuration-demercuration of cis-bicyclo[4.3.0]nona-3,7-diene. Synyhesis of cis-bicyclo[4.3.0]nonenones Zh. Org. Khim., 1983, 19(2), 310-321.
  152. G. Kalechits, N. Kozlov, T. Pehk, T. Välimae, Reductive amination of cis-caran-trans-2-ol by aliphatic nitriles and carbon-13 NMR of reaction products, Zhurnal Obshchei Khimii, 1983, 53(1), 203-8.
  153. N. Kozlov, T. Pehk, T. Välimae, Terpene amines. III. Synthesis and structure of N-cycloalkyl-1,7,7-trimethylbicyclo(2,2,1)heptyl-2-amines., Khimiya Prirodnykh Soedinenii, 1983(1), 41-6.
  154. E. Buinova, T. Pehk, V. Lysenkov, T. Sen'ko, Synthesis of deuterated (-)-limonene, Khimiya Prirodnykh Soedinenii, 1983(1), 111.
  155. S. Shavyrin, I. Bardyshev, T. Pehk, O. Yur'eva, Study of the hydrochlorination of isoterpinolene and saponification of products formed during this process, Journal of Wood Chemistry (Riga), 1983(4), 84-88.
  156. Tarakanova, S. Baranova, T. Pehk, N. Kolesnikov, N. Zefirov, Synthesis of (cyclopropylmethyl) cyclopropyl ketone, Zh. Org. Khim., 1984, 20(3), 652-653.
  157. M. Ordubadi, T. Pehk, N. Belikova, T. Rakhmanchik, A. Plate, Reduction of ketoximes with bicyclo[2.2.1]heptane and tricyclo[2.2.1.02,6]heptane structure, Zh. Org. Khim., 1984, 20(4), 747-53.
  158. A. Bobyleva, N. Dubitskaya, T. Pehk, N. Belikova, Addition of acetic acid to 5-methylene- and 5-methyl-6-methylenebicyclo[2.2.1]hept-2-enes, Zh. Org. Khim., 1984,  20(5),  1012-19.
  159. N. Novikova, I. Sokolova, T. Pehk, Al. Petrov, Synthesis and structure of some dimethyl-substituted spiro[5.5]undec-8-enes and -undeca-1,8-dienes, Neftekhimiya,  1984, 24(4), 475-81.
  160. S. Anfilogova, V. Nigmatova, T. Pehk, N. Belikova, D. Koptev, Transannular cyclization of 3-methyl-cis-bicyclo[4.3.0]nona-2,7-diene, 3-methyl- and 3,4-dimethyl-cis-bicyclo[4.3.0]nona-3,7-dienes.  Synthesis of 5-substituted brexanes. Zh. Org. Khim., 1984, 20(9), 1873-8.
  161. L. Tesfaye, S. Anfilogova, N. Belikova, T. Pehk, Noradamantane synthesis by brexane or brendane isomerization in the presence of acid catalysts, Neftekhimiya,  1984, 24(6), 773-778.
  162. V. Arbuzov, G. Gevorkjan, T. Pehk, A. Bobyleva and N. Belikova, Addition of organic acids to cis-bicyclo[4.3.0]nona-3,7-diene. Synthesis of brexane and brendane derivatives, Zh. Org. Khim., 1984, 20(6), 1226-1237.
  163. N. Vorob'eva, Z. Zemskova, T. Pehk, Al. Petrov, Equilibrium composition and properties of epimers of cedrane, Neftekhimiya, 1985, 25(1), 3-7.
  164. A. Bobyleva, E. Golubeva, N. Dubitskaya, T. Pehk, N. Belikova, Synthesis of endo-4,exo-8-diiodobrexane and endo-9-iodobrex-4-ene, Zh. Org. Khim., 1985, 21(3),  680-681.
  165. Akhrem, A. Orlinkov, V. Bakhmutov, P. Petrovskii, T. Pehk, E. Lippmaa, M. Vol'pin, Study of the nature of the complexes acetyl bromide-2-(aluminum bromide), acetyl chloride-2-(aluminum chloride), and acetyl chloride-2-(antimony(V) fluoride) using proton, carbon-13, aluminum-27, fluorine-19, and oxygen-17 NMR, Doklady Akademii Nauk SSSR, 1985, 284(3), 627-631.
  166. N. Dubitskaya, E. Khaibullina, T. Pehk, Yu. Grishin, N. Belikova, A. Bobyleva, Addition of hydrobromic acid to cis-bicyclo[4.3.0]nona-3,7-diene. Synthesis of 5-bromobrexane and 5-brexanone, Zh. Org. Khim., 1985, 21(8), 1738-42.
  167. E. Mil'vitskaya, T. Pehk, N. Pereslegina, A. Tarakanova, A. Ivanov, Synthesis and thermal reactions of bicyclo[n.1.0]alkenes containing a methylenecyclopropane fragment, Zh. Org. Khim., 1985, 21(8), 1720-1732.
  168. G. Gevorkyan, N. Belikova, A. Bobyleva, T. Pehk, S. Anfilogova, V. Nigmatova, Yu. Osokin, Isomeric cis-bicyclo[4.3.0]nonadienes, Zh. Org. Khim., 1985, 21(8), 1732-1738.
  169. G. Gevorkyan, M. Ordubadi, L. Tesfaye, T. Pehk, N. Belikova, S. Anfilogova, A. N.; Bobyleva, Suitable method for obtaining compounds of the brexane, brendane, and noradamantane series, Zh. Org. Khim., 1985, 21(9), 1897-1904.
  170. E. Buinova, T. Pehk, V. Lysenkov, N. Yaremchenko, T. Sen'ko, Intramolecular cyclization of m-menthen-8-ols by mercuric acetate, Zhurnal Obshchei Khimii, 1985, 55(12), 2751-7.
  171. V. Lysenkov, T. Pehk, G. Bazhina, Reaction of 1,8-p-menthadiene with hydrogen chloride, Vestsi Akademii Navuk BSSR, Ser. Khim. Navuk, 1985(1), 60-64.
  172. V. I. Lysenkov, B. G. Udarov, T. Pehk, Composition of hydrochloride products from the reaction of α-pinene with hydrogen chloride, Vestsi Akad. Navuk BSSR, Ser. Khim. Navuk, 1985(4), 62-66.
  173. N. G. Kozlov, T. Pehk, T. Välimäe, M. D. Ordubadi, N. A. Belikova, Synthesis of 2-(α-alkylaminoethyl)bicyclo[2.2.1]heptanes and 2-(α-alkylaminoethyl)-bicyclo[2.2.2]octanes, Zh. Org. Khim., 1985, 21(12), 2511-2517.
  174. T. Välimäe, T. Pehk, E. Lippmaa, M. Lopp, Ü. Lille, 13C NMR spectroscopy of prostaglandins. 2. Prostanoids with oxygen at C9 and their intermediates, Proc. Estonian Acad. Sci. Chem., 1986, 35(3), 165-192.
  175. N. Vorob'eva, Z. Zemskova, T. Pehk, Al. Petrov, Diterpenoid tetracyclic hydrocarbons of petroleum, Neftekhimiya, 1986, 26(3), 291-7.
  176. N. B. Novikova, I. M. Sokolova, T. Pehk, Al. Petrov, Synthesis, stereochemistry and equilibrium ratios of isomers of 1,6-, 1,7- and 1,8-dimethyl spiro[4.5]decanes, Neftekhimiya, 1986, 26(1), 3-11.
  177. M. D. Ordubadi, G. G. Gevorkyan, T. Pehk, O. V. Berezkina, Synthesis and reduction of tricyclo[4.3.0.03,7]nonan-5-one oxime, Zh. Org. Khim., 1986, 22(1), 226-227.
  178. M. Sokolova, T. Pehk, S. N. Anfilogova, L. Tesfaye, N. Belikova, N. F. Dubitskaya, Synthesis of methyl homologs of brexane, brendane and noradamantane, Neftekhimiya, 1986, 26(2), 152-159.
  179. G. G. Gevorkyan, M. D. Ordubadi, N. A. Belikova, T. Pehk, Ritter reaction of 2-norbornanols and 2-brendanols, Zh. Org. Khim., 1986, 22(9), 1885-1892.
  180. M. D. Ordubadi, G. G. Gevorkyan, T. Pehk, O. V. Berezkina, N. A. Belikova, Synthesis and reduction of tricyclo[4.3.0.03,7]nonan-5-one, Zh. Org. Khim., 1986,. 22, 226-227.
  181. E. Kiirend, S. P. Chumakova, T. Pehk, Orientation of nematic amphiphilic systems based on cetyltrimethylammonium bromide in a magnetic field, Kristallografiya, 1986, 31(4), 732-735.
  182. N. Vorob'eva, T. Pehk, Z. Zemskova, Al. Petrov, Stereochemistry and relative thermodynamic stability of perhydrochrysene epimers, Neftekhimiya, 1987, 27(6), 750-754.
  183. S. Degtyarenko, T. Pehk, S. A. Makhnach, K. F. Smirnova, Salts of 3-amino-2-hydroxypropyl pimarate and their biological activity, Vestsi Akad. Navuk BSSR, Ser. Khim. Navuk, 1987(5), 44-48.
  184. J. Schraml, J. Past, J. Puskar, T. Pehk, E. Lippmaa, R. Brezny, Assignment of Si-29 NMR lines and determination of silicon-29-carbon-13 coupling constants in pertrimethylated lignin related phenol-carboxylic acids by selective heteronuclear INADEQUATE method, Collect. Czech. Chem. Commun., 1987, 52(8), 1985-1991.
  185. V. Tarakanova, S. V. Baranova, T. Pehk, O. Dogadin, N. S. Zefirov, Syntheses based on cyclopropyl cyclopropylmethylketone, Zh. Org. Khim., 1987, 23(3), 515-521.
  186. N. Vorob'eva, Z. Zemskova, T. Pehk, L. Golovkina, A. Petrov, The synthesis and isomerization of tetracyclo[6.2.2.02,703,6]tetradecanes, Neftekhimiya, 1988, 28(5), 606-612.
  187. A. Matveeva, A. Y. Kolesnikov, T. Pehk, A. A. Petrov, Synthesis and isomeric transformations of methyl(1,2-cyclopentane)phenatrenes, Neftekhimiya, 1988, 28(3), 298-302.
  188. Al. Petrov, T. Pehk, N. Vorob'eva, Z. Zemskova, Identification of some novel tetracyclic diterpene hydrocarbons in petroleum, Org. Geochemistry, 1988, 12(2), 151-156.
  189. S. Degtyarenko, T. Pehk, V. I. Lysenkov, Synthesis of halogen-containing esters based on salts of resin acids, Vestsi Akad. Navuk BSSR, Ser. Khim. Navuk, 1988(5), 59-62.
  190. E. Arak, A. Raal, T. Pehk, U. Mäeorg, The ingredients of Matricaria Discoidea - geranylisovaleriate, trans-β-farnesene and herniarin, Khim. Prirod. Soed., 1988(6), 804-806.
  191. E. Lukovskaja, A. Bobyleva, T. Pehk, N. Dubitskaja, I. Petrushenkova and N. Belikova, The iodine reaction with cis-bicyclo[4.3.0]nona-3,7-diene. The synthesis of tricyclo[4.3.0.03,7]nona-4,8-diene (brexa-4,8-diene), Zh. Org. Khim., 1988, 24(7), 1457-1463.
  192. T. Pehk, E. Lippmaa, J. Schraml, O. Pihar, M. Minarik, J. Hirsch, H. Knobloch, S. Datta, Isolation and structure of a new oligosaccharide formed as a byproduct during the preparation of commercial lactulose, Carbohydr. Res,. 1988, 177, 43-50.
  193. I. Koppel, V. Eiber, J. Koppel, T. Pehk, Chemical shifts of 1H, 79Br, 17O, 13C and 14N in aqueous solution of Bu4NBr, Organic Reactivity, 1988, 25(1), 58-76.
  194. M. Lopp, A. Paju, P. Niidas, T. Välimäe, T. Pehk, Ü. Lille, Reaction of lithium alkynyltrifluoroborate reagents with 2,3 epoxy-6-oxabicyclo/3.3.0/octan-7-ol. Synthesis of 13,14-didehydro analogs of prostaglandin F2α, Zh. Org. Khim., 1989, 25(11), 1312-1321.
  195. M. Lopp, A. Paju, T. Pehk, Ü. Lille, The chemoselective addition of alkynyl lithium/boron trifluoride diethyl ether reagents to 2,3-endo-epoxy-6-oxabicyclo-[3.3.0]octan-7-ol: a short route to PgF2α derivatives, J. Chem. Res., Synop., 1989, 7, 210-211.
  196. R. Jäälaid, T. Pehk, T. Kanger, M. Lopp, Ü. Lille, Chiral sulfoxides from dithioketal of bicyclo/3.2.0/hept-2-en-6-one and its epoxide, Proc. Estonian Acad. Sci. Chem., 1989, 38(2), 133-134.
  197. N. S. Vorob'eva, T. Pehk, Z. K. Zemskova, A. A. Petrov, Stereochemistry of vicinal perhydroindacene and perhydrotriphenylene, Neftekhimiya, 1989, 29(5), 658-664.
  198. E. Lukovskaja, A. Bobyleva, T. Pehk, N. Dubitskaja, I. Petrushenkova, N. Belikova, The synthesis of tricyclo[4.3.0.03,7]nona-4,8-diene (brexadiene) from the reactions of cis-bicyclo[4.3.0]nona-3,7-diene with iodine, Zh. Org. Khim., 1989, 24(7), 1457-1463.
  199. A. Bobyleva, E. V. Lukovskaya, T. Pehk, N. F. Dubitskaya, N. A. Belikova, Iodination of cis-bicyclo[4.3.0]nona-3,7-diene in various solvents. Synthesis of functionally substituted 2-aza-tricyclo[5.2.2.04,8]undecenes, Zh. Org. Khim., 1989, 25(8), 1671-1677.
  200. S. N. Anfilogova, V. A. Andreev, T. Pehk, N. A. Belikova, Hydrogenisation of 3,4-dimethyl-cis-bicyclo[4.3.0]nona-3,7-diene, Zh. Org. Khim., 1989, 25(7), 1436-1442.
  201. G. Gevorkyan, M. Ordubadi, T. Pehk, N. Belikova, The synthesis of amines of brexane, brendane and noradmanatane, Zh. Org. Khim., 1989, 25(7), 1421-1428.
  202. A. Bobyleva, I. Petrushenkova, E. Lukovskaya, T. Pehk, N. Dubitskaya, N. Belikova, The Ritter reaction of unsaturated hydrocarbons with norbornane and brexane sceletons, Zh. Org. Khim., 1989, 25(7), 1428-1436.
  203. S. Degtyarenko, T. I. Pehk, T. A. Pereguda, K. F. Smirnova, V. I. Lysenkov, Synthesis and pesticide activity of thiocyanates based on diterpene alcohols and acids, Vestsi Akad. Navuk BSSR, Ser. Khim. Navuk, 1989(4), 50-53.
  204. E. V. Buinova, T. Pehk, N. G. Yaremchenko, T. L. Sen'ko, Synthesis and carbon-13 NMR spectra of terminal derivatives of cis-p and -m-methanes, Zh. Org. Khim., 1989, 25(3), 510-517.
  205. K. N. Zelenin, V. V. Alekseev, T. Pehk, O. B. Kuznetsov, Synthesis of 3-thio-1,2,4-triazine derivatives from biacetyl and 4-substituted thiosemicarbazides, Khim. Geterotsikl. Soedin., 1989, 9, 1288.
  206. T. Pehk, M. Haga, H. Vija, E. Lippmaa, High field 2D NMR spectroscopy of amanitin isomers, Magn. Reson. in Chemistry, 1989, 27, 173-183.
  207. H. Timotheus, T. Pehk, U. Maeorg, M. Karro, V. Eiber, Regioselectivity of aldol condensation reactions and stereochemistry of β-hydroxy ketone reduction products, Zh. Org. Khim., 1989, 25(11), 2295-2301.
  208. E. Grüner, J. Arro, T. Pehk, V. Sadovskaya, Composition of heavy neutral oil of kukersite shale, Oil Shale, 1989, 6(1), 77-88.
  209. I. Martin, J. Anvelt, T. Pehk, Ü. Lille, Copper (II) bromide utilization in the synthesis of 15-keto-Pgβ1, Synthetic Communications, 1990, 20(17), 2597-2605.
  210. R. Jäälaid, M. Lopp, T. Pehk, Ü. Lille, Optically active synthones for the prostaglandin synthesis, Zh. Org. Khim., 1990, 26(11), 2355-2360.
  211. N. Vorob'eva, T. Pehk, Z. Zemskova, A. Petrov, Dicadinanes - pentacyclic triterpenoic hydrocarbons of petroleum, Neftekhimiya, 1990, 30(4), 435-439.
  212. V. Nigmatova, V. Andreev, T. Pehk, N. Belikova, A. Bobyleva, S. Anfilogova, N. Dubitskaya, G. Karosa, New possibilities for transannular cyclisation of 1,5-dienes in Ritter reaction, Zh. Org. Khim., 1990, 26(12), 2552-2565.
  213. K.N. Zelenin, V.V. Alekseev, T.Y. Gabis, S.I. Yakimovitch, T. Pehk, Ring-chain tautomerism of thiocarbohydrazones, Tetrahedron Lett., 1990, 31(27), 3927-1930.
  214. E. S. Gankina, O. I. Kurenbin, E. E. Kever, I. Malakhova, B. G. Belenkii, E. Lippmaa, T. Pehk, Absolute method of determination of molecular weight distribution of oligomers based on HPTLC and high resolution NMR, J. Planar Chromatogr.-Mod.TLC, 1990, 3(1-2), 68-72.
  215. K. N. Zelenin, O. V. Solod, V. V. Aleksejev, T. Pehk, O. B. Kuznetsova, P. B. Terent'ev, A. G. Kagarandishvili, Synthesis of pyrazole, 1,3,4-thiadiazole and 1,2,4-triazole derivatives by the condensation of 1,3-diketones with thiosemicarbazide derivatives, Khim. Heteroc. Soed., 1990(9), 1260-1270.
  216. E. Arak, A. Raal, T. Pehk, U. Mäeorg, Composition of the volatile oil of Matricaria Discoidea DC. Trans- and cis-en-in-bicycloether, Estonian Pharmacist, 1990, 16(1), 5-9.
  217. A. A. Bobylyova, N. F. Dubitskaya, A. V. Khoroshutin, T. I. Pehk, N. A. Belikova, The reactions of brexadiene - a new norbornene-like caged diene, Tetrahedron Letters, 1991, 32(44), 6429-6432.
  218. M. Lõhmus, V. Vahemets, I. Järving, N. Samel, Ü. Lille, T. Pehk, Preparative separation of natural prostaglandins E, Preparative Chromatography, 1991, 1(3), 279-300
  219. Phan Lien Chau, T. Pehk, A. V. Tarakanova, A. V. Anisimov, Fhan Tong Son, Tsan Duc Quan, Stereochemistry of Diels-Alder reaction of Z-β-ocimene with some dienofiles, Vestn. Mosk. Univ., 1991, 32(1), 72-77.
  220. I. Martin, J. Anvelt, T. Pehk, Ü. Lille, The synthesis of 16,16-dimethyl-15-keto-prostaglandin B1 oligomers, Tetrahedron, 1991, 47(24), 3999-4006.
  221. E. V. Lukovskaja, A. A. Bobyleva, T. Pehk, N. A. Belikova, Reaction of cis-bicyclo[4.3.0]nonadienes with bromine and mixed halogens, Zh. Org. Khim., 1991, 27(2), 345-353.
  222. S. Anfilogova, V. Andreev, T. Pehk, N. Belikova, Anomalic iodination and iodochlorination of 3,4-dimethyl-cis-3,7-bicyclo[4.3.0]nonadiene, Zh. Org. Khim., 1991, 27(7), 1450-1458.
  223. M. Lopp, T. Kanger, A. Müraus, T. Pehk, Ü. Lille, Synthesis of a novel four carbon chiron- (R)-1-tert-butyldimethylsilyl-3,4-epoxy-but-1-yne, Tetrahedron Asymmetry, 1991, 2(10), 943-944.
  224. T. Pehk, A. E. Petrenko, A. M. Aleksandrov, A. E. Sorocinskii, V. G. Golovatôi, V. Kuhar, Bromo and hydroxy derivatives of tetracyclo[6.3.0.04.1105.9] undecane-2.7-dione, Zh. Org. Khim., 1991, 27(12), 2560-2566.
  225. T. Pehk, M. Haga, H. Vija, E. Lippmaa, 2D NMR spectroscopy of amanitin isomers, Toxicon, 1991, 29, 294.
  226. M. Lopp, G. Kobzar, M. Bergmann, T. Pehk, A. Lopp, T. Välimäe, M. Viigimaa,Ü. Lille, Synthesis and anti-aggregative activity of novel ω-achiral carba-analogues of prostacycline, Eur. J. Med. Chem., 1992, 27, 155-159.
  227. L. Grehn, U. Bondesson, T. Pehk, U. Ragnarsson, Synthesis of C-13 and N--15  labelled tert-butoxycarbonyl glycines and glycine amides as precursors and simple models of backbone-labelled peptides, Chem. Communications, 1992, 1332-1333.
  228. V. A. Andreev,  V. B. Nigmatova, S. N. Anfilogova, T. Pehk, N. A. Belikova, Cyclization of 1,2,4-trimethyl-4-isopropenylcyclohexene as the convenient way to the substituted bicyclo-[2.2.1]heptanes, Zhurnal organicheskoi khimii (1992) 28 (6), 1313-1314.
  229. V. B. Nigmatova. L. E. Tatarova, Y. V. Gatilov, D. V. Korchagina, I. Y. Bagryanskaya, T. Pehk, N. A. Belikova, S. N. Anfilogova, V. A. Barkhash, Conversions of methyl-cis-bicyclo[4.3.0]nonadienes in different acidic media, Zhurnal organicheskoi khimii (1992), 28 (8), 1660-1670.
  230. T. Kanger,  M. Liiv, T. Pehk, M. Lopp, Highly stereoselective synthesis of the new propargylic epoxyde: 3R,4S-1-tert-butyl-trimethylsilyl-3,4-epoxy-1 -pentyne, Synthesis, 1993(1), 91-93.
  231. T. Kanger, M. Lopp, A. Müraus, M. Lõhmus, G. Kobzar, T. Pehk, Ü.  Lille,  Synthesis of a novel optically active 15-nonstereogenic carbaprostacyclin.. Synthesis, (1992), 10, 925 - 927.
  232. R. Koljak, T. Pehk, I. Järving, M. Liiv, A. Lopp, K. Varvas, A. Vahemets, Ü. Lille, N. Samel, New antiproliferative 9,11-secosterol from soft coral GERSEMIA FRUTICOSA, Tetrahedron Letters, 1993, 34(12), 1985-1986.
  233. I. Järving, M. Lôhmus, K. Valmsen, T. Pehk, M. Liiv, Ü. Lille, N. Samel, Identification of 1a,1b-dihomo-2,3-didehydro-PGE2 in ram seminal vesicles, Natural Product Letters, 1993, 2(2), 111-114.
  234. L. Grehn, T. Pehk, U. Ragnarsson, Synthesis and spectroscopic properties of C-13 and N-15 labelled tert-butoxycarbonyl glycines, Acta. Chem. Scand., 1993, B47(11), 1107-1111.
  235. T. Pehk, E. Lippmaa, M. Lopp, A. Paju, B. C. Borer, R. J. K. Taylor Determination of the absolute configuration of chiral secondary alcohols; New advances using C-13 and  2D NMR spectroscopy, Tetrahedron: Asymmetry, 1993, 4(7), 1527-1532.
  236. K. Varvas, J. Järving, R. Koljak, A. Vahemets, T. Pehk, A.-M. Müürisepp, Ü. Lille, N. Samel, In vitro biosynthesis of prostaglandins in the White Sea soft coral GERSEMIA FRUTICOSA: Formation of optically active PGD2, PGE2, PGF2α and 15-keto PGF2α from arachidonic acid, Tetrahedron Letters, 1993, 34(22), 3643-3646.
  237. M. Alexandrov, R. P. Kashyap, T. Pehk, A. Petrenko, W. H. Watson, Synthesis of 1-substituted 12-oxahexacyclo[7.2.1.02,8.03,7.04,11.06,10]-dodecanes and their transformation into pentacyclo[6.3.0.02,6.03,10.05,9]- undecane derivatives, J. Org. Chem.,1993, 58,1831-1834.
  238. H. Rang, T. Pehk, S. Viitmaa, K. Lääts, Synthesis and fragrant characteristics of methylpentenol 5-oxa-derivatives, Proc. Estonian Acad. Sci. Chem., 1993, 42(2), 83-86.
  239. E. Muks, I. Lõiveke, T. Pehk, Participation of the 5-alkoxy group in allylic cation stabilization: Conversion into Z-isomers, Tetrahedron Letters, 1993, 34(29),4717- 4718.
  240. V. A. Andrejev, I. V. Bahtin, E. V. Lukovskaja, T. Pehk, A. A. Bobôleva, S. N. Anfilogova, N. A. Belikova, Iodination and chlorination methyl-substituted cis-bicyclo[4.3.0]-nona-3,7-dienes, Neftekhimia, 1993, 33(6), 156-163.
  241. M. Aleksandrov, T. J. Pehk, A. E. Petrenko, W. H. Watson, Accessible route to 4-substituted "bird-cage" hydrocarbon derivatives, J. Org. Chem., 1994, 59(13), 3709-3711.
  242. M. Aleksandrov, S. A. Bourne, M. Krawiec, T. Pehk, A. E. Petrenko, W. H. Watson, New route to 4,4,6,7-tetrasubstituted pentacyclo-[6.3.0.02,6.03,10.05,9]-undecanes, Tetrahedron, 1994, 50(29), 8597-8602.
  243. M. Lopp, A. Lopp, A. Paju, Ü. Lille, T. Pehk, Synthesis and antiproliferative activity of 15- oxo prostaglandins: contribution of the ω-chain enone group to cytotoxicity, Bioorganic @ Medicinal Chemistry Letters, 1994, 4(14), 1739-1744.
  244. A. Paju, T. Pehk, Ü. Lille, M. Lopp, Novel and short synthesis of 16,16-dimethyl-6-oxo-prostaglandin-E1, Journal of Chem. Research, Synopsis, 1994, 132-134.
  245. A. Paju, T. Pehk, Ü. Lille, M. Lopp, Novel and short synthesis of 16,16- dimethyl-6-oxo- prostaglandin-E1, Journal of Chem. Research, Microfiche, 1994 0821-0830.
  246. K. Varvas, R. Koljak, I. Järving, T. Pehk, N. Samel, Endoperoxide pathway  in prostaglandin biosynthesis in the soft coral Gersemia fruticosa, Tetrahedron  Letters , 1994, 35(44), 8267-8270.
  247. V. B. Nigmatova, Yu. V. Zaitsev, S. N. Anfilogova, T. I. Pehk, N. A. Belikova, On the transformations of bicyclo[4.3.0]non 3 en 7 yl cation, Zh. Org. Khim., 1994, 30, 686-691.
  248. A. Paju, A. Soone, T. Pehk, M. Lopp, Synthesis of ω-Saturated 7 Oxabicyclo-[2.2.1]heptane Analogues of Thromboxane A2, Tetrahedron, 1995, 51, 10561-10570.
  249. M. Aleksandrov, M. Krawiec, T. Pehk, A. Petrenko and W. H. Watson, Rearrangement of a trishomocubane derivative.to tetracyclo[6.3.0.02,6.03,10]undece-4-ene, Structural Chemistry, 1996, 7(1), 73-77.
  250. T. Pehk, E. Kiirend, E. Lippmaa, U. Ragnarsson, General approach to measure-ments of pKa differences by 13C NMR spectroscopy, J. Chem. Soc., Perkin Trans. 2, 1996, 2351-2357.
  251. M. Lopp, A. Paju, T. Kanger, T.Pehk, Asymmertic Baeyer-Villiger oxidation of cyclobutanones, Tetrahedron Letters, 1996, 37(42), 7583-7586.
  252. A. Bobylyova, A. V. Khoroshutin, E. V. Lukovskaya, T. Pehk, N. A. Belikova, Addition of dibromocarbene to tricyclo[4.3.0.03,7]nona-4,8-diene (brexadiene). Synthesis of exo-4,5,10, exo-11-tetrabromotricyclo[5.4.0.03,8]-undeca-5,9-diene, Mendeleev Commun., 1996, 112-113.
  253. V. A. Andrejev, V. B. Nigmatova, S. N. Anfilogova, A. A. Bobylyova, T. Pehk, N. A. Belikova, Formation of heterocyclic 3D structures via  cyclization of 1,2,4-trimethyl-4-isopropenylcyclohexene, Khimiya Geterotsiklicheskikh soedinenii., 1996 (6), 754-759.
  254. V. A. Andrejev, S. N. Anfilogova, E. V. Lukovskaja, A. A. Bobylyova, T. Pehk, N. A. Belikova, Rearrangements of 1,9-dimethyl-5-brexyl carbonium ion, Vestnik MGU, 1996, 526-532.
  255. K. Truus, M. Vaher, H. Kukk, T. Pehk, A. Kollist, Gelling galactans of red algae from the Baltic Sea, 1996, Proc. Estonian Acad. Sci. Chem., 1996, 45(1/2), 15-29.
  256. U. Mäeorg,  K. Kallas, S. Viirlaid, T. Pehk, A. Meriste, Behaviour of some enynols and one diynol in superbasic systems MNH(CH2)2NH2/H2N(CH2)2NH2, Proc. Estonian Acad. Sci. Chem.,1996, 45(3/4), 134-139.
  257. O. Parve, I. Vallikivi, L. Lahe, A. Metsala, U. Lille, V. Tõugu, H. Vija, T. Pehk, Lipase catalyzed enantioselective hydrolysis of bicyclo[3.2.0]heptanol esters in supercritical carbon dioxide, Bioorg. & Medicinal Chem. Lett., 1997, 7(7), 811-816.
  258. T. Pehk, E. Kiirend, E. Lippmaa, U. Ragnarsson, L. Grehn, Determination of isotope effects on acid-base equilibria by 13C NMR spectroscopy, J. Chem. Soc., Perkin Trans. 2, 1997, 445-450.
  259. O. Parve, I. Vallikivi, A. Metsala, Ü. Lille, V.Tõugu, P. Sikk, T. Käämbre, H. Vija, T. Pehk, Lipase-catalyzed enantioselective hydrolysis: Interpretation of the kinetic results in terms of frontier orbital localisation, Tetrahedron, 1997, 53, 4889-4900.
  260. M. Lopp, A. Paju, T. Kanger, T. Pehk, Direct asymmetric α-hydroxylation of β- hydroxyketones, Tetrahedron Letters, 1997, 38(28), 5051-5054.
  261. A. Uri, T. Pehk, Synthesis and structural characterization of conjugates of adenosine and tetra-aspartate, Novel analogs of ATP, Bioorganic & Medicinal Chemistry Letters, 1997, 7(17), 2159-2164.
  262. K. Truus, M. Vaher, A. Usov, T. Pehk, A. Kollist,  Gelling galactans from the algal community of  Furcellaria lumbricalis and Coccotylus truncatus (the Baltic Sea, Estonia): a structure-property study, Int. J. Biol. Macromol., 1997, 21, 89-96.
  263. V. Khoroshutin, A. A. Bobylyova, T. I. Pehk, V. S. Kuz'min, N. A. Belikova, Addition of dichlorocarbene to tricyclo[4.3.0.0 3,7]nona-4,8-diene, Russian Chemical Bulletin, 1997, 46, 1430-1433.
  264. O. Parve, M. Aidnik, Ü. Lille, I. Martin, I. Vallikivi, L. Vares, T. Pehk, The tetrahydropyranyl protected mandelic acid: a novel versatile chiral derivatising agent, Tetrahedron: Asymmetry, 1998, 9, 885-896.
  265. M. Vaher, K. Truus, I. Taure, I. Leito, L. Lahe, U. Kallavus, T. Pehk, Composition and structure of summary polysaccharide from the red alga Furcellaria lumbricalis, Proc. Estonian Acad. Sci. Chem.,47(2), 51-59.
  266. A. Kuusksalu, J. Subbi, T. Pehk, T. Reintamm, W. E. Müller, M. Kelve, (2'-5')-oligoadenylate synthetase in marine sponge: Identification of its reaction products, Eur. J. Biochem., 1998, 257(2), 420-426.
  267. A. Kuusksalu, J. Subbi, T. Pehk, T. Reintamm, M. Kelve, (2'-5')oligoadenylate system in marine sponges, Eur. Cytokine Netw., 1998, 9, 326.
  268. T. Kanger, P. Niidas, A.-M. Müürisepp, T. Pehk, M. Lopp, Synthesis of chiral epoxyalkynes, Tetrahedron: Asymmetry, 1998, 9, 2499-2508.
  269. T. Kanger , K. Kriis, A. Paju, T. Pehk, M. Lopp, Asymmetric oxidation of cyclobutanones: Modification of Sharpless catalyst, Tetrahedron: Asymmetry, 1998, 9 , 4475-4482.
  270. R. Jäälaid, I. Järving, T. Pehk, Ü. Lille, First partial synthesis of a 9,11-secosterol with modified side chain, Proc. Estonian Acad. Sci. Chem.,  1998, 47(4), 196-199.
  271. R. Koljak, A. Lopp, T. Pehk, K. Varvas, M. Müürisepp, I. Järving, N. Samel, New cytotoxic sterols from the soft coral GERSEMIA FRUTICOSA, Tetrahedron, 1998, 54,.179-186.
  272. O. Parve, I. Järving, I. Martin, A. Metsala, I. Vallikivi, M. Aidnik, T. Pehk, N. Samel, Lipase-catalysed acylation of prostanoids, Bioorganic & Medicinal Chemistry Letters, 1999(9),1853-1858.
  273. U. Mäeorg, T. Pehk, U. Ragnarsson, Synthesis of substituted hydrazines from triprotected precursors, Acta Chemica Scandinavica, 1999, 53, 1127-1133.
  274. K. Siimer, T. Pehk, P. Christjanson, Study of the structural changes in urea-formaldehyde condensates during synthesis, Macromol. Symp. 1999, 148, 149-156.
  275. R. Aav, O. Parve, T. Pehk, A. Claesson, I. Martin, Preparation of highly enantiopure stereoisomers of 1-(2,6-dimethylphenoxy)-2-aminopropane (mexiletine), Tetrahedron: Asymmetry,  1999, 10, 3033-3038.
  276. A. Bobylova, S. N. Anfilogova, N. A. Belikova, T. Pehk, A. V. Anisimov, The addition of sulfur dichloride to bicyclo[2.2.1]hept-2-ene and to bicyclo[2.2.2]oct-2-ene, Sulfur Letters, 1999, 22(2), 51-55.
  277. A. Paju, T. Kanger, T. Pehk, M. Lopp, Asymmetric oxydation of 1,2-cyclopentanediones, Tetrahedron Letters, 2000, 41(35), 6883-6887.
  278. R. Aav, T. Kanger, T. Pehk, M. Lopp, Synthesis of the AB-Ring of 9,11-Secosterols, Synlett, 2000(4), 529-531.
  279. K. Valmsen, I. Järving, W. E. Boeglin, K. Varvas, R. Koljak, T. Pehk, A. R. Brash, N. Samel, The origin of 15R-prostaglandins in the Carribean coral Plexaura homomalla: molecular cloning and expression of a novel cyclooxygenase, Proc. Natl. Acad. Sci. USA, 2001, 98, 7700 – 7705.
  280. O. Tšubrik, P. Burk, T. Pehk, U. Mäeorg, Conformational analysis of 1-acetyl-2-methylhydrazine, Journal of Molecular Structure: THEOCHEM, 2001, 546(1-3), 119-125.
  281. R. Jäälaid, I. Järving, T. Pehk, O. Parve, Ü. Lille, Short synthesis of novel 9,11-secosterols, Natural Product Letters, 2001, 15(4), 221-228.
  282. M. Lopp, A. Paju, T. Kanger, K. Kriis, K. Ilmarinen, T. Pehk, Asymmetric oxidation of ketones, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 124–137.
  283. R. Aav, T. Kanger, T. Pehk, M. Lopp, Oxidation of substituted bicyclo[4.4.0]-decen-3-ones, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 138–146.
  284. K. Ilmarinen, K. Kriis, A. Paju, T. Pehk, M. Lopp, Synthesis of new N-tetrasubstituted derivatives of R,R – tartaric acid and their use as chiral ligands in oxidation catalysts, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 147–155.
  285. K. Kriis, T. Kanger, T. Pehk, M. Lopp, Synthesis of (2S, 2S’)-Bimorpholine, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 173–179.
  286. V. Allikmaa, M. Eek, T. Pehk, M. Lopp, A convenient method for the construction of the imidazolone ring in the synthesis of benzamidine derivatives, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 180–185.
  287. J. Peterson, V. Allikmaa, T. Pehk, M. Lopp, Fragmentation of PAMAM dendrimers in methanol, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 167–172.
  288. L. Villo, A. Metsala, O. Parve, T. Pehk, Chemical versus enzymatic acetylation of α-bromo-ω-hydroxyaldehydes: decyclization of hemiacetals by lipase, Tetrahedron Letters, 2002, 43, 3203-3207.
  289. T. Kanger, K. Kriis, T. Pehk, A.-M. Müürisepp, M. Lopp, Asymmetric synthesis of novel C2-symmetric bimorpholines, Tetrahedron: Asymmetry, 2002, 13, 857-865.
  290. A. Paju, T. Kanger, T. Pehk, M. Lopp, Direct asymmetric α-hydroxylation of 2-hydroxymethyl ketones, Tetrahedron, 2002, 58, 7321-7326.
  291. Ü. Lille, I. Heinmaa, T. Pehk, Investigation into kukersite structure using NMR and oxydative cleavage methods: On the nature of phenolic precursors in the kerogen of Estonian kukersite, Oil Shale, 2002, 19,101-116.
  292. E. O. Kiirend, S. P. Chumakova, T. J. Pehk, Lamellar polymorphism in multi-component lyotropic amphiphilic systems based on alkyltrimethylammonium bromide detergents, Crystallography Reports (Kristallografiya), 2002, 47, 914-921.
  293. P. Christjanson, K. Siimer, T. Pehk, I. Lasn, Structural changes in urea-formaldehyde resins during storage, Holz als Roh- und Werkstoff, 2002, 60, 379-384.
  294. A. Paju, T. Kanger, T. Pehk, A.-M. Müürisepp, M. Lopp, Asymmetric oxidation of 3-alkyl-1,2-cyclopentanediones; Part I. 3-Hydroxylation of 3-alkyl-1,2-cyclopentanediones, Tetrahedron: Asymmetry,13(22), 2439-2448.
  295. J. Peterson, V. Allikmaa, J. Subbi, T. Pehk, M. Lopp, Structural deviations in poly(amidoamine) dendrimers: a MALDI-TOF MS analysis, European Polymer Journal, 2003, 39, 33-42.
  296. T. Kanger, K. Ausmees, A.-M. Müürisepp, T. Pehk, M. Lopp, A comparative study of the synthesis of C2-symmetric chiral 2,2’- biaziridinyls, Synlett, 2003(7),1055-1057.
  297. Ü. Lille, I. Heinmaa, T. Pehk, Molecular model of Estonian kukersite kerogen evaluated by 13C MAS NMR spectra, Fuel, 2003, 82, 799-804.
  298. A. Paju, T. Kanger, T. Pehk, R. Lindmaa, A.-M. Müürisepp, M. Lopp, Asymmetric oxidation of 3-alkyl-1,2-cyclopentanediones. Part 2: Oxidative ring cleavage of 3-alkyl-1,2-cyclopentane-diones: synthesis of 2-alkyllactone acids, Tetrahedron: Asymmetry, 2003, 14(11), 1565-1573.
  299. A. Paju, T. Kanger, O. Niitsoo, T. Pehk, A.-M. Müürisepp, M. Lopp Asymmetric oxidation of 3-alkyl-1,2-cyclopentanediones. Part 3: Oxidative ring cleavage of 3-hydroxyethyl-1,2-cyclopentanediones: synthesis of hydroxylactone acids and spirodilactones, Tetrahedron: Asymmetry, 2003, 14(16), 2393-2399.
  300. T. Reintamm, A. Lopp, A. Kuusksalu, T. Pehk, M. Kelve, ATP N-glycosidase, A novel ATP-converting activity from a marine sponge Axinella polypoides, Eur. J. Biochem., 2003, 279, 4122-4132.
  301. A. Paju, T. Kanger, T. Pehk, M. Eek, M. Lopp, A short enantioselective synthesis of homocitric acid-γ-lactone and 4-hydroxy-homocitric acid-γ-lactones, Tetrahedron, 2004, 60, 9081-9084.
  302. A. Metsala, E. Usin, I. Vallikivi, L. Villo, T. Pehk and O. Parve, Quantum chemical evaluation of the yield of hydroxybenzophenones in the Fries rearrangement of hydroxyphenyl benzoates, Journal of Molecular Structure: THEOCHEM, 2004, 712(1-3) 215-221.
  303. I. Vallikivi, I. Järving, T. Pehk, N. Samel, V. Tõugu, O. Parve, NMR monitoring of lipase-catalyzed reactions of prostaglandins: preliminary estimation of reaction velocities. Journal of Molecular Catalysis B: Enzymatic  (2004), 32(1-2), 15-19.
  304. K. Siimer, T. Kaljuvee, P. Christjanson, T. Pehk,, Changes in curing behaviour of aminoresins during storage, Journal of Thermal Analysis and Calorimetry, 2005, 80(1), 123-130.
  305. R. Aav, T. Kanger, T. Pehk, M. Lopp, Unexpected reactivity of ethyl 2-   (diethylphosphono)-propionate toward 2,2-disubstituted-1,3-cyclopentanediones, Phosphorus, Sulfur, and Silicon and the Related Elements, 2005, 180(7), 1739-1748.
  306. T. Kanger, K. Raudla, R. Aav, A.-M. Müürisepp, T. Pehk, M. Lopp, Synthesis and derivatization of bis-nor Wieland-Miescher ketone, Synthesis, 2005 (18), 3147-3151.
  307. I. Vallikivi , L. Fransson, K. Hult, I. Järving, T. Pehk, N. Samel, V. Tõugu, L. Villo, O. Parve, The Modelling and kinetic investigation of the lipase-catalysed acetylation of stereoisomeric prostaglandins. Journal of Molecular Catalysis B: Enzymatic (2005), 35(1-3), 62-69.
  308. T. Paalme, I. Nisamedtinov, K. Abner, T.-M. Laht, M. Drews, T. Pehk, Application of 13C-[2] - and 13C-[1,2] acetate in metabolic labelling studies of yeast and insect cells, Antonie van Leeuwenhoek International Journal of General and Molecular Microbiology (2006), 89(3-4), 443-457.
  309. K. Truus, R. Tuvikene, M. Vaher, T. Kailas, P. Toomik, T. Pehk, Structural and compositional characteristics of gelling galactan from the red alga Ahnfeltiato buchiensis (Ahnfeltiales, the Sea of Japan), Carbohydrate Polymers, 2006, 63,130-135.
  310. P. Christjanson, T. Pehk, K. Siimer, Hydroxymethylation and polycondensation reactions in urea-formaldehyde resin synthesis, Journal of Applied Polymer Science, 100(2006), 1673-1680.
  311. A. Paju, M. Laos, A. Jõgi, M. Päri,  R. Jäälaid,  T.  Pehk,  T. Kanger,  M. Lopp,  Asymmetric synthesis of 2-alkyl-substituted 2-hydroxyglutaric acid gamma-lactones, Tetrahedron Letters, 47 (2006), 4491-4493.
  312. K. Kriis, T. Kanger, M. Laars, T. Kailas, A.-M. Müürisepp, T. Pehk, M. Lopp, Enantioselective synthesis of Wieland-Miescher  ketone through bimorpholine-catalyzed organocatalytic aldol condensation, Synlett 2006(11), 1699-1702.
  313. T. Kanger,  M. Laars, K. Kriis,  T. Kailas,  A-M. Müürisepp, T. Pehk, M. Lopp, Anchimeric assistance in the case of vicinal dimesylate: formation of enantiomeric meso-bimorpholine, Synthesis 2006(11), 1853-1857.
  314. A. Jõgi, T.  Pehk, T.  Kailas, A.-M.  Müürisepp, T.  Kanger, M.  Lopp, Asymmetric synthesis of 2-phenyl-5-oxotetrahydrofuran-2-carboxylic acids. Synthesis-Stuttgart, (2006), (18), 3031 - 3036.
  315. P. Christjanson, T. Pehk, K. Siimer, Structure formation in urea-formaldehyde resin synthesis, Proc. Estonian Acad. Sci. Chem., 2006, 55, 212-225.
  316. A. Niidu, A. Paju, M. Eek, A.-M. Müürisepp, T. Pehk, M. Lopp,  Synthesis of chiral hydroxylated cyclopentanones and cyclopentanes. Tetrahedron: Asymmetry, (2006), 17(18), 2678 - 2683.
  317. E. Enkvist, G. Raidaru, A. Vaasa, T. Pehk, D. Lavogina, A. Uri, Carbocyclic 3'-deoxyadenosine-based highly potent bisubstrate-analog inhibitor of basophilic protein kinases. Bioorganic & Medicinal Chemistry Letters, (2007),17, 5336-5339.
  318. T.  Kanger, K.  Kriis, M.  Laars, T. Kailas, A.-M. Müürisepp, T. Pehk, M. Lopp, Bimorpholine-Mediated Enantioselective Intramolecular and Intermolecular Aldol Condensation, J. Org. Chem., 2007, 72 (14), 5168-5173.
  319. L. Villo,  K.  Danilas, A.  Metsala, M.  Kreen, I.Vallikivi, S. Vija, T.  Pehk,  L.  Saso,  O.  Parve, Synthesis of Deoxy Sugar Esters: A Chemoenzymatic Stereoselective Approach Affording Deoxy Sugar Derivatives Also in the Form of Aldehyde, J. Org. Chem., 2007, 72 (15), 5813-5816.
  320. K.  Lippur, T.  Kanger,  K. Kriis,  T. Kailas, A.-M. Müürisepp, T.  Pehk,  M. Lopp, Synthesis of (2S,2'S)-bimorpholine N,N'-quaternary salts as chiral phase transfer catalysts, Tetrahedron: Asymmetry, 2007, 18 (1), 137 - 141.
  321. E. Kiirend, S. Chumakova, T. Pehk,  Identification of nematic lyomesophases with discotic and cylindrical micelles in lyotropic amphiphilic systems, Crystallography  Reports, 2007, 52 (1): 155-158.
  322. R. Aav,  T. Kanger, T.Pehk, M. Lopp,  Synthesis of substituted cyclopentanones from 2-oxabicyclo[3.3.0]oct-6-en-3-one. Proceedings of the Estonian Academy of Sciences. Chemistry, 2007, 56(1), 3 - 13.
  323. Э. Кийренд, С. Чумакова, Т. Пехк, Идентификация нематических лиомезофаз с дискотическими  и цилиндрическими мицеллами в лиотропных амфифильных  системах, Кристаллография, 2007, 52(1),  158-161.
  324. K. Siimer, T.  Kaljuvee, P. Christjanson,  T. Pehk, I. Saks,  (2008). Effect of alkylresorcinols on curing behaviour of phenol-formaldehyde resins. Journal of Thermal Analysis and Calorimetry, 2008, 91(2), 365-373.
  325. K. Siimer,  P. Christjanson,  T. Kaljuvee, T. Pehk,  I.  Lasn, I. Saks,. (2007). TG-DTA study of melamine-urea-formaldehyde resins. Journal of Thermal Analysis and Calorimetry, 2008, 92 (1), 19-27.
  326. Tamp, S.; Danilas, K.; Kreen, M.; Vares, L.; Kiirend, E.; Vija, S.; Pehk, T.; Parve, O.; Metsala, A.  A Total Conformational Analysis of Diastereomeric Esters and Calculation of their Conformational shielding Models. Journal of Molecular Structure: THEOCHEM, 2008, 851(1-3), 84-91.
  327. R. Tuvikene, K. Truus, A. Kollist,  O. Volobujeva,  E. Mellikov,  T. Pehk, Gel-forming structures and stages of red algal galactans of different sulfation levels, Journal of Applied Phycology, 2008, 20, 527-535.
  328. P. Christjanson, T. Pehk, K. Siimer, Jane Paju, Structure of polycondensates from hydroxymethylphenols, Journal of Applied Polymer Science, 2008, 107(2), 1226-1234.
  329. Reile, Indrek; Paju, Anne; Eek, Margus; Pehk, Tõnis; Lopp, Margus. Aerobic Oxidation of Cyclopentane-1,2-diols to Cyclopentane-1,2-diones on Pt/C Catalyst. .Synlett, 2008(3), 347 - 350.
  330. Jõgi, Artur; Ilves, Marit; Paju, Anne; Pehk, Tõnis; Kailas, Tiiu; Müürisepp, Aleksander-Mati; Lopp, Margus. Asymmetric synthesis of 4'-C-benzyl-2,3-dideoxynucleoside analogues from 3-benzyl-2-hydroxy-2-cyclopentane-1-one. Tetrahedron  Asymmetry, 2008, 19(5), 628 - 634.
  331. Laars, M.; Kriis, K.; Kailas, T.; Müürisepp, A.M.; Pehk, T.; Kanger, T.; Lopp, M. Structural constraints for C-2-symmetric heterocyclic organocatalysts in asymmetric aldol reactions . Tetrahedron Asymmetry, 2008, 19(6), 641 - 645.
  332. Paju, J.; Pehk, T.; Christjanson, P. (2009). Structure of phenol-formaldehyde polycondensates. Proceedings of the Estonian Academy of Sciences. Chemistry, 58(1), 45-52.
  333. Tuvikene, R.; Truus, K.; Robal, M.; Pehk, T.; Kailas, T.; Vaher, M.; Paalme, T. Structure and thermal stability of pyruvated carrageenans from the red alga Coccotylus truncatus. Carbohydrate Research, 2009, 344(6), 788 - 794. 
  334. Jõgi, A.; Paju, A.; Pehk, T.; Kailas, T.; Müürisepp, M.; Lopp, M. (2009). Synthesis of 4 '-aryl-2 ',3 '-dideoxynucleoside analogues. Tetrahedron, 65(15), 2959 - 2965. 
  335. Niidu, A.; Paju, A.; Müürisepp, A.-M.; Kailas, T.; Pehk, T.; Lopp, M.. (2009). Synthesis of chiral enantioenriched tetrahydrofuran derivatives. Arkivoc, xiv, 39 - 52. 1.1.
  336. Siimer, K.; Christjanson, P.; Kaljuvee, T.; Pehk, T.; Saks, I. (2009). Thermal behaviour of hydroxymethyl compounds as models for adhesive resins. Journal of Thermal Analysis and Calorimetry, 97(2), 459 - 466. 1.1.
  337. Kriis, K.; Ausmees, K.; Pehk, T.; Lopp, M.; Kanger, T. (2010). A Novel Diastereoselective Multicomponent Cascade Reaction. Organic Letters, 12(10), 2230 - 2233.
  338. Christjanson, Peep; Pehk, Tõnis; Paju, Jane (2010). Structure and curing mechanism of resol phenol-formaldehyde prepolymer resins. Proceedings of the Estonian Academy of Sciences. Chemistry, 59(3), 225 - 232.
  339.  Lippur, K.; Elmers, C.; Kailas, T.; Müürisepp, A-M.; Pehk, T.; Kanger, T.; Lopp, M. (2010). Synthesis of 5,5'-disubstituted bimorpholines. Synthetic Communications, 40(42), 266 - 281.
  340. Paju, A.; Päri, M.; Selyutina, A.; Zusinaite, E.; Merits, A.; Pehk, T.; Siirde, K.; Müürisepp, A.M.; Kailas, T.; Lopp, M. (2010). Synthesis of novel acyclic nucleoside analogues with anti-retroviral activity. Nucleosides Nucleotides & Nucleic Acids, 29(9), 707 - 720.
  341. Tuvikene, R.; Truus, K.; Robal, M.; Volobujeva, O.; Mellikov, E.; Pehk, T.; Kollist, A.; Kailas, T.; Vaher, M. (2010). The extraction, structure, and gelling properties of hybrid galactan from the red alga Furcellaria lumbricalis (Baltic Sea, Estonia). Journal of Applied Phycology, 22, 51 - 63. 
  342. Siimer, K.; Kaljuvee, T.; Pehk, T.; Lasn, I. (2010). Thermal behaviour of melamine-modified urea-formaldehyde resins. Journal of Thermal Analysis and Calorimetry, 99(3), 755 - 762. 
  343. Villo, L.; Kreen, M.; Kudryashova, M.; Metsala, A.; Tamp, S.; Lille, Ü.; Pehk, T.; Parve, O. (2011). A Chemoenzymatic Synthesis of Deoxy Sugar Esters Involving Stereoselective Acetylation of Hemiacetals Catalyzed by CALB. Journal of Molecular Catalysis B: Enzymatic, 68 (1), 44-51. 
  344. Aav R., Pehk T., Tamp S., Tamm, T., Kudryashova M., Parve O., Lopp M. (2011). Theoretical prediction and assignment of vicinal 1H-1H coupling constants of diastereomeric 3-alkoxy-6,7-epoxy-2- oxabicyclo[3.3.0]octanes, Magnetic Resonance in Chemistry, 49 (2), 76-82.
  345. Reile, I.; Paju, A.; Müürisepp, A.-M.; Pehk, T.; Lopp, M. (2011). Oxidation of cyclopentane-1,2-dione: a study with 18O labeled reagents. Tetrahedron, 67(33), 5942 - 5948.
  346. Villo, Ly; Kreen, Malle; Kudryashova, Marina; Metsala, Andrus; Tamp, Sven; Lille, Ülo; Pehk, Tõnis; Parve, Omar. (2011). A chemoenzymatic synthesis of a deoxy sugar ester of N-Boc-protected L-tyrosine, in "Practical Methods for Biocatalysis and Biotransformations" ,Wiley 2011, editors: Dr John Whittall and Dr Peter Sutton . Dr John Whittall and Dr Peter Sutton (Toim.). Practical Methods for Biocatalysis and Biotransformations (1 - 6).Wiley-Blackwell [ilmumas]
  347. Ausmees, Kerti; Selyutina, Anastasia;  Kütt, Kristel; Lippur, Kristin; Pehk, Tõnis; Lopp, Margus; Žusinaite, Eva; Merits, Andres; Kanger, Tõnis. (2011). Biological activity and synthesis of bimorpholine and nucleoside carba-analogue derived from it. Nucleosides, Nucleotides and Nucleic Acids, 30(11), 897-907.
  348. Tanel Tätte, Medhat Hussainov, Madis Paalo, Marko Part, Rasmus Talviste, Valter Kiisk, Hugo Mändar, Kaija Põhako, Tõnis Pehk, Kaido Reivelt, Marco Natali, Jonas Gurauskis, Ants Lõhmus,  Uno Mäeorg. (2011) Alkoxide-based precursors for direct drawing of metal oxide micro- and nanofibres. Sci. Technol. Adv. Mater. 12 (2011) 034412 (12pp).

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Patents

  1. Rang, H.; Chernyshev, V. O.; Erm, A.; Pehk, T.; Lääts, K.  3-Methyl-1-phenyl- and -1-(methylphenyl)-4-hexen-1-ols and their acetates as perfumes. U.S.S.R.  1979,      CODEN: URXXAF  SU  685658
  2. Dubitskaya, N. F.; Belikova, N. A.; Bobyleva, A. A.; Pehk, T.; Lippmaa, E.; Plate, A. F.  5-Methyl-6-methylene-2-norbornene.    U.S.S.R.,1980, CODEN: URXXAF  SU  718448
  3. Bardyshev, I. I.; Degtyarenko, A. S.; Pertsovskii A. L and Pehk, T., Δ8-9- pimaric acid.  U.S.S.R. 1982  CODEN: URXXAF  SU 989840.
  4. A. S. Degtyarenko, T. Pehk, A. Malama, L. Kalatskaja, A. Lukašik, V. Talapin, V. Stelmah, 3-amino-2-hydroxypropyl esters of isopimaric acid as antimicrobic agents.     U. S. S. R. 1987, CODEN: URXXAF  SU 3849090.
  5. Margus Lopp, Anne Paju, Tõnis Pehk, Margus Eek, Tõnis Kanger. Meetod (-)-R-homosidrunhappe ja (+)-S-homosidrunhappe laktoonide saamiseks. Patenditaotlus. EE 200400009 A, 15.08.2005.
  6. A. Neeme, J. Neeme, T. Pehk, Biolaguneva pindaktiivse puhastusvahendi kompositsioon, Patent EE P200400092, 09.06.2004.
  7. Margus Lopp, Anne Paju, Margus Eek, Marit Laos, Tõnis Pehk, Raissa Jäälaid; 2-hüdroksü-3-okso-tsüklopentüül)-äädikhappe estrid ja meetod nendest ainetest (-)-R- ja (+)-S-homosidrunhappe g-laktooni ja vastavate (-)-R- ja (+)-S-homosidrunhappe soolade valmistamiseks;  Prioriteedinumber: P200600017; Prioriteedikuupäev: 25.05.2006

Abstracts of Scientific meetings

  1. E. Lippmaa, T. Pehk, J. Past, M. Mägi, T. Saluvere, The use of heteronuclear double resonance and 13C, 14N, 15N and 17O NMR for determination of molecular structures, Abstracts of papers presented at the 25 Years of Paramagnetic Resonance Jubilee Conference in Kazan University 24-29 June 1969, p. 165-166.
  2. O. A. Reutov, E. T. Lippmaa, T. N. Shatkina, T. I. Pehk, E. V. Leontyeva, A new 13C NMR method for the study of molecular rearrangements, All-Union Symposium Mechanisms of Heterolytic Molecular Rearrangements, Erevan, April 23-29, 1969, p. 41.
  3. I. Arro, E. Lippmaa, T. Pehk, U. Pihlak, Charge transfer studies in enzyme molecules, Abstracts of the Symposium on Regulation of Enzyme Systems, Tallinn, 5-6 Oct. 1972, p. 3.
  4. E. T. Lippmaa, T. J. Pehk, T. A. Saluvere, Chemical polarization of 15N and 13C nuclei in diazo coupling reactions, Abstracts of the International Symposium on Chemically Induced Dynamic Polarization of Nuclei and Electrons, Tallinn, 13‑16 Aug. 1972, p. 54-55.
  5. E. T. Lippmaa, T. A. Saluvere, T. J. Pehk, A. I. Olivson, Chemical polarization of 15N and 13C nuclei, Abstracts of the International Symposium on Chemically Induced Dynamic Polarization of Nuclei and Electrons, Tallinn, 13‑16. Aug. 1972, p. 56-58.
  6. G. A. Nikiforov, L. G. Plehanova, S. V. Rykov, V. V. Ershov, A. I. Buchachenko, T. J. Pehk, E. T. Lippmaa, CIDNP of 1H and 13C nuclei in the reactions of cyclohexadienone carbenes, Abstracts of the International Symposium on Chemically Induced Dynamic Polarization of Nuclei and Electrons, Tallinn, 13‑16. Aug. 1972, p. 60-61.
  7. T. Pehk, E. Lippmaa, A. F. Platé, N. A. Belikova, A. A. Bobyleva, 13C chemical shifts in bicyclo[3.2.1] derivatives, Abstracts of the XIth European Congress on Molecular Spectroscopy, Tallinn 1973, p. 135.
  8. E. O. Kiirend, T. I. Pehk, E. T. Lippmaa, 13C NMR studies of the cetyltrimethyl­ammonium-hexyl alcohol-water system, Abstracts of the III All-Union Conference on Liquid Crystals and Applications, Ivanovo 1975.
  9. T. J. Pehk, E. T. Lippmaa, N. S. Vorobyeva, A. A. Petrov, 13C NMR spectroscopy of bi- and tricyclic naphthenes with five-membered cycles, III All-Union Conference, Stereochemistry and Conformational Analysis in Organic and Petrochemical Synthesis, Abstracts, Baku-Sumgait 1976, p. 5-6.
  10. T. J. Pehk, A. H. Laht, E. T. Lippmaa, I. A. Musayev, E. H. Kurachova, Structure-conformational 13C NMR analysis of bicyclo[4.4.0]decane methyl derivatives, III All-Union Conference, Stereochemistry and Conformational Analysis in Organic and Petrochemical synthesis, Abstracts, Baku-Sumgait 1976, p. 25-26.
  11. T. J. Pehk, V. V. Salum, E. T. Lippmaa, Calculation of the 13C chemical shifts and conformations of aliphatic compounds, Abstracts of the All-Union Conference Use of Computing Machinery in Molecular Spectroscopy, Novosibirsk 1977, p. 66.
  12. N. A. Belikova, A. A. Bobyleva, N. F. Dubitskaya, S. A. Lermontov, T. J. Pehk, E. T. Lippmaa, M. D. Ordubadi, A. F. Platé, Synthesis of  5‑methylene- and  5‑ethylidenebicyclo[2.2.1]hept-2-ene derivatives, I Petrochemical Symposium of Socialist States, Baku, Nov. 1978, p. 2.
  13. G. C. Levy, T.  Pehk, E. Lippmaa, Carbon-13 and nitrogen-15 NMR studies of molecular conformation and dynamics, Abstracts of the 11th Southeastern Magnetic Resonance Conference, Gainesville 1979, p. D5.
  14. T. I. Pehk, E. T. Lippmaa, Chemical shifts of 13C nuclei in liquids and solids, Contemporary NMR and EPR Methods in Solid State Chemistry, Chernogolovka, 15-17 May 1979, p. 36.
  15. T. Pehk, E. Lippmaa, Comparison of carbon chemical shifts in high resolution solid and liquid state spectra, Abstracts of the International Symposium on Magnetic Resonance in Chemistry, Biology and Physics, Argonne 1979, p. 40.
  16. T. Pehk, T. Välimäe, N. Samel, M. Lopp, Ü. Lille, E. Lippmaa, Structure determination of prostaglandins by C-13 NMR spectroscopy, Abstracts of the all-union conference on the synthesis and studies of prostaglandins, Riga, 1982, p.19.
  17. T. Pehk, E. Kiirend, E. Lippmaa, 17O NMR spectroscopy in strong magnetic fields, Abstracts of the 2nd all-union conference on NMR spectroscopy of heavy nuclei in organometallic compounds, Irkutsk 1983, p. 23-24.
  18.  E. Kiirend, T. Pehk, Macroscopically oriented nemathic amphiphilic systems, Abstracts of the 5th All-Union Conference on liquid crystals and their applications, Ivanovo 1985, Vol. 2 p.88 (1985).
  19. A. A. Bobyleva, E. V. Lukovskaja, T. Pehk, N. F. Dubitskaja, Molecular rearrangements in the reaction of iodine with the cis-bicyclo/4.3.0/nonadiene-3,7, Abstracts of the All-Union conference on molecular rearrangements, Erevan 1985.
  20. M. Ordubadi, T. Pehk, G. G. Gevorkyan, Cycle enlargement at the reduction of bi- and tricyclic ketoximes by the LiAlH4, Abstracts of the All-Union conference on molecular rearrangements, Erevan 1985.
  21. N. A. Belikova, A. A. Bobyleva, G. G. Gevorkyan, S. N. Anfilogova, V. B. Nigmatova, T.Pehk, V.A. Arbuzov, Molecular rearrangements of cis-bicyclo/4.3.0/nonadiene and its methyl derivatives with the organic acids, Abstracts of the All-Union conference on molecular rearrangements, Erevan 1985.
  22. A. A. Bobyleva, E. V. Lukovskaja, T. Pehk, N. F. Dubitskaja, N. Belikova, Cage carbo- and heterocyclic compounds from cis-bicyclo[4.3.0]nonane derivatives, Abstracts of the All-Union conference on the cage compounds, 1986, Kiev.
  23. G. G. Gevorkyan, N. Belikova, M. Ordubadi, T. Pehk, Synthesis of amines and acetylamines with brexane, brendane and noradamantane sceletons, Abstracts of the All-Union conference on the cage compounds, 1986, Kiev.
  24. E. Buinova, T. Pehk, V. Lysenkov, Synthesis and conformations of some 7-oxabicyclo[3.2.1]octane derivatives, Abstracts of the 6th IUPAC international conference on organic synthesis, August 10-15 1986, Moscow, p.46.
  25. T. Pehk, M. Haga, A. Aaviksaar, H. Vija, E. Lippmaa, NMR spectroscopy of the fungal oligopeptides from Amanita Phalloides, Theses of the VIIth All-Union Protein and Peptide Chemistry Symposium, Tallinn 1987, p. 228-229.
  26. V. Nigmatova, V. Andreev, T. Pehk, S. Anfilogova, N. Belikova, Transannular cyclization in Ritter reaction of 3-methyl substituted cis-bicyclo/4.3.0/nona-3,7-dienes to the tricyclo[4.3.0.03,7]nonane derivatives, Abstracts of the All-Union conference on perspectives of caged compounds and their applications, p.107, Kuibyshev 1989.
  27. V. Andreev, V. Nigmatova, T.Pehk, S. Anfilogova, N. Belikova, Ritter reaction of 3-methyl and 3,4-dimethyl-cis-bicyclo/4.3.0/nonadienes, Abstracts of the Moscow conference on organic chemistry and chemical engineering, p.227 Moscow 1989.
  28. V. Andreev, T. Pehk, V. Nigmatova, S. Anfilogova, N. Belikova, Chlorination of 3,4-dimethyl-cis-bicyclo/4.3.0/nona-3,7-diene, Abstracts on the 3rd regional meeting on chemicals, p.10, Alma-Ata 1990.
  29. T. Pehk, Determination of the absolute configuration of chiral alcohols by 2D NMR spectroscopy, Abstracts of the 41st Finnish Chemical Congress, Abstract 3-47, Kemia-Kemi 18(10B), 932 (1991).
  30. T. Pehk, M. Haga, H. Vija, E. Lippmaa, 2D NMR spectroscopy of amanitin isomers Abstracts of  the 9th European symposium on animal, plant and microbial toxins, Lohusalu, Estonia, 23-26 september 1990., Toxicon 29, 294 (1991).
  31. N. Samel, K. Varvas, A. Vahemets, R. Koljak, I. Järving, T. Pehk, A.-M. Müürisepp, Ü. Lille, Abstracts of the 2nd International conference on eicosanoids and other bioactive lipids, Berlin, sept. 17-21,1991, p. 92.
  32. T. Pehk, M. Lopp, A. Paju, Determination of absolute configurations by 2D heteronuclear FT NMR spectroscopy, Report  presented on EEC symposium on stereoselective organic synthesis, Groningen, November 12-14, 1993.
  33. A. A. Bobylyova, A. V. Khoroshutin, T. I. Pehk, V. S. Kuz'min, N. A. Belikova , The addition of dihalocarbenes to tricyclo[4.3.0.03,7]nona 4,8 diene. Abstracts of the 7th International conference on the chemical reagents. Moscow 1994.
  34. S. N. Anfilogova Yu. V. Zaitsev, V. B. Nigmatova, T. I.Pehk, N. A. Belikova, The synthesis of 7 methylbicyclo[4.3.0]nona 3,7 diene, Abstracts of the 7th International conference on the chemical reagents. Moscow 1994.
  35. A. A. Bobylyova A. V. Khoroshutin, N. A. Belikova, T. I. Pehk, V. S. Kuz'min, The effect of the backbone distortion on the regioselectivity of cyclopropane ring opening in the reaction of dihalocarbenes with brexadiene, Abstracts of the 2nd Moscow conference on phase transfer catalysis. Moscow 1994 , p. 19 20.
  36. M. Lopp, T. Kanger, P. Niidas, T. Pehk, A facile synthesis of enantiomeric trans-3,4-epoxy-1-octyne from tartaric acid derivatives, 16th Estonian Chemisrty Days, Abstracts of Scientific Conference, Tallinn 1995, p 67.
  37. Lopp, A. Paju, T. Pehk, M. Lopp, New cytotoxic 15-oxoprostaglandins: synthesis and antiproliferativeactivity on human leukemia K562 cell line, 16th Estonian Chemisrty Days, Abstracts of Scientific Conference, Tallinn 1995, p 69.
  38. K. Lääts, T. Pehk, Dehydratation of 2-methylpentane-2,4-diol, 16th Estonian Chemisrty Days, Abstracts of Scientific Conference, Tallinn 1995, p 76.
  39. K. Lääts, T. Pehk, M. Schmidt, M. Heinväli, Synthesis of 2-methyl substituted allylic derivatives, 16th Estonian Chemisrty Days, Abstracts of Scientific Conference, Tallinn 1995, p 77.
  40. A. Paju, T. Pehk, M. Lopp, Synthesis of -saturated 7-oxabicycloheptane analogues of thromboxane A2, 16th Estonian Chemisrty Days, Abstracts of Scientific Conference, Tallinn 1995, p 102-103.
  41. N. Samel, K. Varvas, R. Koljak, I. Järving, T. Pehk, Biosynthesis of prostaglandins in corals, 16th Estonian Chemisrty Days, Abstracts of Scientific Conference, Tallinn 1995, p 126-127.
  42. T. Pehk, M. Lopp, A. Paju, the use of 2D FT NMR Spectroscopy in the route to the individual enantiomers of -chain,w7-oxabicyclo[2.2.1]heptane analogues of thromboxane A2  with the saturated  EC Network Meeting “Stereoselective Organic Synthesis”, Louvain-la-Neuve, Belgium, 1995, abstracts, p.8.
  43. A. A. Bobylyova, A. A. Khoroshutin, T. Pehk, N. A. Belikova, p- and s -bond participation competition in charge delocalization during the deamination of exo-2-tricyclo[4.2.1.03,7]non-4-enylamine (exo--2-brendylamine). Abstracts of the 4th international conference on heteroatom chemistry, Seol, 1995, p B-99.
  44. Vaher, M., Truus, K., Ivask, K., and Pehk, T. Red algal galactans from Furcellaria lumbricalis (the Baltic Sea, Estonia): structure and their modification.  Carbohydrate Bioengineering Meeting. Abstracts. - Elsinore, Denmark, 1995, P-79.
  45. Truus, K., Vaher, M., Usov, A. I., Pehk, T. Structure of gelling galactans from the red alga Furcellaria lumbricalis (the Baltic Sea, Estonia). 8th European Symposium on Carbohydrate Chemistry. Abstracts. - Seville, Spain, 1995, B-48.
  46. T. Pehk, Determination of Absolute Configurations by 2D FT NMR Spectroscopy,  Japan-Northern Baltic Symposium on Synthetic Chemistry, June25-26, 1996, Helsinki, Abstracts PL11.
  47. M. Vaher,.K. Truus, R. Mahlapuu, T. Pehk, A. Kollist, Gelling galactans from the algal stratum of Kassari bay ( Baltic Sea, Estonia), Abstracts of Scientific Conference of the 17th Estonian Chemistry Days, Tartu 1996, p. 219-220.
  48. M. Vaher, K. Truus, T. Pehk, A. Kollist, Gelling galactans from the algal community of Furcellaria lumbricalis and Coccotylus truncatus (the Baltic Sea, Estonia) by simultaneous extraction of the seaweeds. - Plant Polysaccharides Symposium (17-19 July 1996, Nantes, France). Abstracts, 1996, SFR 29.
  49. I. Järving, K. Valmsen, Ü. Lille, M. Lopp, T. Pehk, N. Samel, Selective reduction  of γ- and δ-double bonds in polyunsaturated fatty acids, Abstracts of Scientific Conference of the 17th Estonian Chemistry Days, Tartu 1996, p. 61-62.
  50. R. Koljak, A. Lopp, T. Pehk, K. Varvas, I. Järving, N. Samel, New cytotoxic steroids from the soft coral Gersemia Fruticosa, Abstracts of Scientific Conference of the 17th Estonian Chemistry Days, Tartu 1996, p. 81-82.
  51. U. Mäeorg, K. Kallas, S. Viirlaid, T. Pehk, Behaviour of some nonconjugated enynols and a diynol in the superbasic MNH(CH2)2NH2/H2/H2N(CH2)2NH2 system, Abstracts of Scientific Conference of the 17th Estonian Chemistry Days, Tartu 1996, p. 123-124.
  52. A. Paju, V. Allikmaa, T. Pehk, M. Lopp, Allylic rearrangement of cyclopentenediols, Abstracts of Scientific Conference of the 17th Estonian Chemistry Days, Tartu 1996, p. 138-138.
  53. T. Pehk, An universal 13C NMR method for the comparative analysis of acid base equilibria, Abstracts of Scientific Conference of the 17th Estonian Chemistry Days, Tartu 1996, p. 145-146.
  54. A. Paju, T. Kanger,  T. Pehk, M. Lopp, Asymmetric Baeyer-Villiger oxidation of cyclobutanones, Abstracts of Scientific Conference of the 17th Estonian Chemistry Days, Tartu 1996, p. 139-140.
  55. A. Paju, T. Kanger, T. Pehk, M. Lopp, Asymmertic Baeyer-Villiger oxidation of cyclobutanones, Japan-Northern Baltic Symposium on Synthetic Chemistry, June25-26, 1996, Helsinki, Abstracts, SOC13.
  56. M. Lopp, A. Paju, T. Kanger, T. Pehk, Direct asymmetric b-hydroxylation of a-hydroxyketones, Abstracts of 23rd Estonian Chemistry Days, p. 79 (1997).
  57. T. Pehk, The use of long range effects in 13C NMR spectra of carboxylic acids and their derivatives, Abstracts of 23rd Estonian Chemistry Days, p. 77 (1997).
  58. O. Loog, U. Mäeorg, T. Pehk,  Asymmetric induction in aldol Tishchenko reaction with optically active binaphtol catalysts, Abstracts of 23rd Estonian Chemistry Days, p. 77 (1997).
  59.  R. Jäälaid, J. Veressinina, I. Järving, T. Pehk, Ü. Lille,  Transformation of ergosterol towards 9,11-secosterols, Abstracts of 23rd Estonian Chemistry Days, p. 42 (1997).
  60. K. Kriis, T. Kanger,  A. Paju, T. Pehk, M. Lopp, Oxidation of cyclobutanones with the modified Sharpless catalyst, Abstracts of 23rd Estonian Chemistry Days, p. 62 (1997).
  61. K. Sipila, T. Hase, T. Pehk, Diastereoselectivity in the reactions of new hemithiodithioacetals, Abstracts of the 18th International Symposiumon the Organic Chemistry of Sulfur, Florence, Italy, July 13-18, 1998, P-95).
  62. M. Eek, V. Allikmaa, T. Pehk, M. Lopp, Catalytic reduction of sterols, Abstracts of 24th Estonian Chemistry Days, Tartu 1998, p. 17.
  63. R. Jäälaid, T. Pehk, Ü. Lille, Synthesis of the 9,11-secosterol from ergosterol, Abstracts of 24th Estonian Chemistry Days, Tartu 1998, p. 24.
  64. K. Kriis, T. Kanger, A. Paju, T. Pehk, M. Lopp, Oxydation of cyclobutanones with the modified Sharpless catalyst. Effect of chiral ligand, , Abstracts of 24th Estonian Chemistry Days, Tartu 1998, p. 32.
  65. I. Martin, R. Aav, T. Pehk, A. Claesson, Intramolecular SN 1 ring opening reaction of oxirane, Abstracts of 24th Estonian Chemistry Days, Tartu 1998, p. 44.
  66. J. Peterson, V. Allikmaa, T. Pehk, M. Lopp, Synthesis of antithrombotic diamine, , Abstracts of 24th Estonian Chemistry Days, Tartu 1998, p. 56.
  67. M. Schmidt, M. Eek, T. Pehk, M. Lopp,Synthesis of bensofuroxan-4-carboxylic acid, , Abstracts of 24th Estonian Chemistry Days, Tartu 1998, p. 66.
  68. K. Siimer, T. Pehk, U. Pihlapuu, Structure of modern urea-formaldehyde resins, Abstracts of 24th Estonian Chemistry Days, Tartu 1998, p. 67.
  69. K. Siimer, T. Pehk, P. Christjanson, Changes in Chemical structure of Urea-Formaldehyde Condensates During Synthesis, Polychar-7,  International Conferences on polymer Characterization, Denton, USA 1999; Program and Abstracts, P.10.
  70. K. Siimer, T. Pehk, P. Christjanson, Characterization of Urea-Formaldehyde Condensation by 13C NMR Spectroscopy, Polymer Chemistry and Technology, Proceedings of Conference, Kaunas 1999, p. 61-66.
  71. K. Siimer, T. Pehk, I. Lasn, A. Peterson, Melamine-Urea-formaldehyde Resins for Particleboards, Nordic Polymer Days, Copenhagen 1999, Abstracts P9.
  72. M. Vaher, K. Truus, A. Menert, T. Pehk,  Colloid food additives from red and brown algae of the Baltic Sea: structure and rheology . In: Surface and Colloid Science : 1st Nordic-Baltic Meeting, Vilnius, 1999, 21.-25. Aug. : program and abstracts: Vilnius, 1999, p 77.
  73. K. Siimer, T. Pehk, T. Kaljuvee, I. Lasn, A. Peterson, Suurendatud niiskuskindlusega puitlaastplaatide saamine, XXV Eesti Keemiapäevad, 25-26.11.1999.
  74. J. Peterson, V. Allikmaa, A. Ebber, J. Subbi, T. Pehk, M. Lopp, Characterization of Ethylenediamine (EDA) Core-Polyamidoamine (PAMAM) Dendrimers Different Generations by MALDI-TOF MS, CZE, and 13C NMR, XXV Eesti Keemiapäevad, 25-26.11.1999.
  75. R. Aav, T. Kanger, T. Pehk, M. Lopp, Synthesis of the AB-Ring Synthon of 9,11-Secosterol, XXV Eesti Keemiapäevad, 25-26.11.1999.
  76. V. Allikmaa, T. Pehk, M. Lopp, A New Convenient Synthesis of Ethyl 3-{[[(1-(4-(amino-iminomethyl)phenyl)-4,5-dihydro-2(3H)oxo-1H-imidazol-3-yl)-methyl]carbonyl]-amino}propanoate, XXV Eesti Keemiapäevad, 25-26.11.1999.
  77. K. Ilmarinen, T. Pehk, M. Lopp, Synthesis of Some Chiral Ligands for Asymmetric Catalysts, XXV Eesti Keemiapäevad, 25-26.11.1999.
  78. K. Kriis, T. Kanger, A. Paju, K. Ilmarinen, T. Pehk, M. Lopp, A Comparative Study of Asymmetric Baeyer-Villiger Oxidation of Cyclic Ketones, XXV Eesti Keemiapäevad, 25-26.11.1999.
  79. M. Lüll, A. Paju, T. Pehk, M. Lopp, Synthesis of 4-Methyl-5,6-decanedione, XXV Eesti Keemiapäevad, 25-26.11.1999.
  80. A. Niidu, A. Maasalu, A. -M. Müürisepp, T. Pehk, M. Lopp, Synthesis of 3-Cyano-2-methyl-cyclohex-2-ene-1-one, XXV Eesti Keemiapäevad, 25-26.11.1999.
  81. A. Paju, T. Kanger, T. Pehk, M. Lopp, Asymmetric Oxidation of Cycloalkanediones, XXV Eesti Keemiapäevad, 25-26.11.1999.
  82. M. Schmidt, M. Eek, T. Kanger, T. Pehk, M. Lopp, Isolation and Identification of By-Products from the Intramolecular Cyclization of Aromatic Isocyanates, XXV       Eesti Keemiapäevad, 25-26.11.1999.
  83. V. Allikmaa, A. Paju, T. Pehk, A. Öpik, M. Lopp, Rearrangement of 1,4-dihydroxy-2-cyclopentenes, Abstracts PO2 of International Conference on Organic synthesis, BOS2000, Vilnius. June 26-29.
  84. K. Kriis, T. Kanger, A. Paju, K. Ilmarinen, T. Pehk, M. Lopp, Effect of the chiral catalyst in asymmetric Baeyer-Villiger oxidation of cyclic ketones, Abstracts PO22 of International Conference on Organic synthesis, BOS2000, Vilnius. June 26-29.
  85. A. Paju, T. Kanger, T. Pehk, M. Lopp, Asymmetric oxydation of 3-alkyl-1,2-cyclopentanediones, Abstracts PO35 of International Conference on Organic synthesis, BOS2000, Vilnius. June 26-29.
  86. J. Peterson, V. Allikmaa, J. Subbi, J. Suurpere, T. Pehk, M. Lopp, Synthesis and MALDI-TOF characterization of EDA core polyamidoamine (PAMAM) dendrimers by MALDI-TOF MS analysis, Abstracts PO36 of International Conference on Organic synthesis, BOS2000, Vilnius. June 26-29.
  87. O. Tšubrik, P. Burk, T. Pehk, U. Mäeorg, Synthesis and conformational analysis of 1-acetyl-2-methylhydrazine, Abstracts PO51 of International Conference on Organic synthesis, BOS2000, Vilnius. June 26-29.
  88. I. Vallikivi, I. Järving, A. Metsala, T. Pehk, O. Parve, Lipase catalysed regioselective acylation/ deacylation of prostanoids, Abstracts PO53 of International Conference on Organic synthesis, BOS2000, Vilnius. June 26-29.
  89. K. Siimer, T. Pehk, A. Suurpere, Characterisation of ageing of melamine-formaldehyde resins by NMR spectroscopy, Abstracts P15 of Nordic Polymer Days 2000, Helsinki 24-26 May 2000.
  90. K. Kriis, T. Kanger, T. Pehk, M. Lopp,  Synthesis of (2R, 2´R) – and (3S, 3´S) – Bimorpholine, Abstracts #29 of 26th Estonian Chemistry Conference, Tallinn, November 2000.
  91.  A. Paju, T. Kanger, T. Pehk, M. Lopp, Asymmetric Oxidation of 3-Alkyl-1,2-Cyclopentanediones, Abstracts #54 of 26. Estonian Chemistry Conference, Tallinn, November 2000.
  92.  J. Peterson, V. Allikmaa, J. Subbi, T. Pehk, M. Lopp, Characterization of EDA Core Polyamidoamine (PAMAM) Dendrimers Different Generations by MALDI-TOF MS, Abstracts #58 of 26. Estonian Chemistry Conference, Tallinn, November 2000.
  93. K. Siimer, T. Pehk, Ü. Vetik, A. Suurpere, Melamine-Formaldehyde Impregnation Resins, Abstracts #72 of 26. Estonian Chemistry Conference, Tallinn, November 2000.
  94. I. Vallikivi, T. Pehk, K. Hult, O. Parve, Reactions and Molecular Modelling of Prostanoids in the Active Site of Candida antarctica Lipase B, Abstracts #89 of 26. Estonian Chemistry Conference, Tallinn, November 2000.
  95. K. Siimer, T. Pehk, T. Kaljuvee, I. Lasn, A. Peterson, Manufacture of Particleboards Using Melamine-Urea-Formaldehyde Resins, Abstracts of Conference on Polymer Chemistry, Physics and Technology, p.47-50, Kaunas 2000.
  96. K. Siimer, A. Suurpere, T. Pehk, Structural Changes in Melamine-Formaldehyde Resins During Storage, Abstracts of Conference on Polymer Chemistry, Physics and Technology p.51-54, Kaunas 2000.
  97. K. Siimer, T. Pehk, P. Christjanson, Studies on the Structure of Melamine-Formaldehyde Condensates by 13C NMR Spectroscopy, Abstracts of Finnish Chemical Congress 2000.
  98. T. Pehk, P. Christjanson, K. Siimer, Chemical Structure of melamine-Formaldehyde Resins, POLYCHAR-9, January 2001, World forum on polymer applications and theory, University of North Texas, Abstracts P-70.
  99. L. Villo, A. Metsala, O. Parve, T. Pehk,  Dynamics of the Ratio of Isomeric Forms of ω-Hydroxyaldehyde throughout the Synthesis of Deoxysugar Methyl Glycosides, XXVII Estonian Chemistry Conference, 2001.
  100. O. Parve, T. Pehk, V. Tougu, I. Vallikivi, L. Fransson, K. Hult,  Synthetic, 1H NMR spectroscopic kinetic, and MD modeling studies of lipase-catalyzed reactions of prostanoids. Abstracts of Papers, 222nd ACS National Meeting, Chicago, IL, United States, August 26-30, 2001  (2001).
  101. K. Truus, M. Vaher, T. Pehk, Composition and Possible Uses of Brown Algae Fucus vesiculosus from the Baltic Sea, XXVII Estonian Chemistry Conference, 2001.
  102. K. Kanger, K. Ausmees, T. Pehk, M. Lopp. Synthesis of chiral C2-symmetric bisaziridines. In: International Conference on Organic Synthesis – BOS 2002, Vilnius, 2002, 83.
  103. K. Kriis, T. Kanger, T. Pehk, M. Lopp. Synthesis of (2S, 2´S)- and (3S, 3´S)-bimorpholine. In: International Conference on Organic Synthesis – BOS 2002, Vilnius, 2002, 87.
  104. T. Kanger, K. Ausmees, T. Pehk, M. Lopp, Kiraalsete C2-sümmeetriliste bisasiridiinide süntees, Synthesis of Chiral C2-Symmetric Bisaziridines, Abstracts of 28th Estonian Chemistry Days, (2002), 43-44.
  105. K. Kriis, T. Kanger, T. Pehk, M. Lopp, (2S,2´S)– ja (3S,3´S)–bimorfoliini süntees; Synthesis of (2S,2´S)– and (3S,3´S)–bimorpholine, Abstracts of 28th Estonian Chemistry Days, (2002), 60-61.
  106. K. Truus, M. Vaher, K. Saal, A. Lõhmus, T. Pehk, Pruunvetikate Fucus vesiculosus ja neist eraldatud alginaatide kompleksuuring, Complex Investigation of Brown Algae Fucus vesiculosus and Alginates from This Species, Abstracts of 28th Estonian Chemistry Days, (2002), 145.
  107. T. Kanger, K. Kriis, K. Ausmees, T.  Pehk, M.  Lopp, C2-symmetric enantiomeric heterocycles : synthesis and application. 13th European Symposium on Organic Chemistry : September 10-15, 2003, Cavtat-Dubrovnik, Croatia : programme and abstracts. 2003, 342 - 342. 
  108. A. Paju, T. Kanger, O.  Niitsoo, T.  Pehk, A.-M.  Müürisepp, M.  Lopp,  Oxidative ring cleavage of 3-hydroxyethyl-1,2-cyclopentanediones : synthesis of 4-hydroxy-[??]-lactone acids and spiro-[??]-dilactones. Komppa Centenary Symposium : July 6-9, 2003, Espoo, Finland, 2003, A73 - A73.
  109. A. Niidu, A. Paju, M. Eek, T. Kanger, T. Pehk, M. Lopp,  Regio- and stereoselective synthesis of chiral dihydroxyketones. In:Komppa Centenary Symposium Espoo July 6-9 2003 Abstracts: Komppa Centenary Symposium Espoo July 6-9 2003. Espoo: Helsinki University of Technology, 2003, A70 - A70.
  110. M. Vaher,  K. Truus,  M.  Koel,  T.  Pehk, I.  Taure,  A. Viitak,  Complex investigation of composition of the brown alga Fucus vesiculosus (The Baltic sea) by different instrumental methods. In:Instrumental Methods of Analysis modern Trends and Applications: Conference Proceedings, Thessaloniki, 2003: International Conference on Instrumental Methods of Analysis: Modern Trends and Applications, Thessaloniki, 2003. 2003, 238 - 240.
  111. M. Lopp, A. Paju, T. Kanger, T. Pehk,   Oxidation of 3-alkyl-1,2-cyclopentanediones : synthesis of lactone acids and spirodilactones. 13th European Symposium on Organic Chemistry : September 10-15, 2003, Cavtat-Dubrovnik, Croatia : programme and abstracts, p. 101.
  112.  R. Aav, T. Kanger, T. Pehk, M. Lopp, Unexpected direction of the reaction of ethyl 2-(diethylphosphono)propionate with 2,2-disubstituted-1,3-cyclopentanediones, BOS2004, International Conference on Organic Synthesis, Abstracts PO1, p53.
  113. K. Ausmees, K. Kulper, T. Pehk, T. Kanger, M. Lopp,  Synthesis of vicinal amino alcohols from tartaric ester, BOS2004, International Conference on Organic Synthesis, Abstracts PO2, p54.
  114. K. Ilmarinen, T. Pehk, M. Lopp,  MPA in the determination of the absolute configuration of vicinal diols by NMR spectroscopy, BOS2004, International Conference on Organic Synthesis, Abstracts PO35, p87.
  115. A. Niidu, A. Paju, M. Eek, T. Kanger, T. Pehk, M. Lopp, Investigation of the synthesis of hydroxylated cyclopentanediones, BOS2004, International Conference on Organic Synthesis, Abstracts PO64, p116.
  116. A. Paju, T. Kanger, T. Pehk, M. Eek, M. Lopp, A short enantioselective synthesis of homocitric acid -lactone and 4-hydroxyhomocitric acid -lactones, BOS2004, International Conference on Organic Synthesis, Abstracts P66, p118.
  117. K. Raudla, T. Kanger, T. Pehk, M. Lopp,  Synthesis of 1-methylbicyclo[3.3.0]octane-3,4,8-trione, BOS2004, International Conference on Organic Synthesis, Abstracts PO70, p122.
  118. A. Jõgi,  A. Paju, T. Pehk, M. Lopp, The synthesis and asymmetric oxidation of p-substituted 3-phenyl-2-hydroxy-2-cyclopenten-1-one derivatives, 29th Estonian Chemistry Days, Abstracts of Scientific Conference, 21-22,(2005).
  119. A. Jõgi, M. Ilves, A. Paju, T. Pehk, M. Lopp, The synthesis of 3-benzyl-2-hydroxy-2-cyclopenten-1-one and its asymmetric oxidation, 29th Estonian Chemistry Days, Abstracts of Scientific Conference, 23-24,(2005).
  120. M. Laos, A. Paju, T. Kanger, M. Lopp, T. Pehk, Synthesis and asymmetric oxidation of 3-benzyloxymethyl-1,2-cyclopentanedione, 29th Estonian Chemistry Days, Abstracts of Scientific Conference, 52-53,(2005).
  121. M. Päri, A.  Paju, T. Pehk, M.  Lopp,   Asymmetric synthesis of 3-hydroxymethyl-1,3,5-hexanetriol and preparation of titanium complexes, 29th Estonian Chemistry Days, Abstracts of Scientific Conference, 92-93,(2005).
  122.  K. Raudla, T. Kanger, A.-Müürisepp, T. Pehk, M. Lopp,  Synthesis of bicyclo[3.3.0]octanone derivatives, 29th Estonian Chemistry Days, Abstracts of Scientific Conference, 94-95,(2005).
  123. K. Siimer, K., I. Saks, P. Christjanson, T. Pehk, A. Suurpere, T. Kaljuvee, Urea resins in Estonia, 29th Estonian Chemistry Days, Abstracts of Scientific Conference, 101-102,(2005).
  124. A. Paju, A. Jõgi, M. Laos, T. Pehk, T. Kanger, M. Lopp, Abstracts of Sixth Tetrahedron Symposium, Boredeaux, 2005, 209.
  125. M. Laos, A. Jõgi, A. Paju, T. Kanger, T. Pehk,  M. Lopp,  Asymmetric synthesis of 2-benzyl- and 2-benzyloxymethyl g-lactone acids. In: 14 th European Symposium on Organic Chemistry (ESOC14): Helsinki (2005): Abstracts p. 309 - 309.
  126. K. Raudla, M. Lopp, R. Aav, T. Kanger, T. Pehk,   Os-catalyzed dihydroxylation : an efficient method for desymmetrization of 2-allyl-2-methyl-1,3-cyclopentanedione. OMCOS 13 (2005): 15th IUPAC International Symposium on Organometallic Chemistry directed towards Organic Synthesis : 17-21 July 2005, Geneva, Switzerland : book of abstracts (478 - 478). Geneva
  127. R. Tuvikene, K. Truus, U.  Kallavus, M.  Vaher, T.  Pehk, Red algal galactans nature-reserving isolation, analysis and possible applications in nanotechnology. Conference on knowledge-based materials and techologies for sustainable chemistry (1-5 June 2005, Tallinn, Estonia). Abstract book , p.120. Tallinn: Tallinna Tehnikaülikool
  128. T. Pehk,  NMR in the synthesis of nitrogen compounds without 15N NMR spectroscopy, Abstracts of the International Conference on Organic Synthesis-BOS2006, June 25-29, 2006, p.47.
  129. R. Aav,  T. Kanger, T. Pehk,  A. Riismandel,  M. Lopp, Derivatisation of Grieco lactone, Abstracts of the International Conference on Organic Synthesis-BOS2006, June 25-29, 2006, p.55
  130. K. Ilmarinen, V. Allikmaa, T. Pehk, M. Lopp, Synthesis of new N,N,N',N'-tetrasubstituted derivatives of R,R-tartaric acid, Abstracts of the International Conference on Organic Synthesis-BOS2006, June 25-29, 2006, p.97.
  131. A. Jõgi, A. Paju, T. Pehk, A.-M. Müürisepp, T. Kailas, M. Lopp, Synthesis of 3-phenyl-2-hydroxy-2-cyclopenten-1-ones and their asymmetric oxidation, Abstracts of the International Conference on Organic Synthesis-BOS2006, June 25-29, 2006, p.100.
  132. K. Kriis, T. Kanger, M. Laars, T. Kailas, A.-M. Müürisepp, T. Pehk, M. Lopp, Bimorpholine as an organocatalyst for asymmetric aldol condensation, Abstracts of the International Conference on Organic Synthesis-BOS2006, June 25-29, 2006, p.104.
  133. M. Laos, A. Jõgi,  M. Päri,  R. Jäälaid,  A. Paju, T. Pehk,  T. kanger, M. Lopp,  Asymmetric synthesis of 2-alkyl-substituted 2-hydroxyglutaric acid gamma-lactones.  A simple access to DAG-lactone template, Abstracts of the International Conference on Organic Synthesis-BOS2006, June 25-29, 2006, p.108.
  134. M. Päri, M. Lüll, A. Paju, T. Pehk, M. Lopp, Synthesis of 3-hydroxymethyl-1,3,6-hexanetriol from chiral spirodilactone, Abstracts of the International Conference on Organic Synthesis-BOS2006, June 25-29, 2006, p.129.
  135. K. Raudla, T. Kanger, T. Pehk, A.-M. Müürisepp, M. Lopp, Synthesis of N,N'-disubstituted (2S,2S')-bimorpholine, Abstracts of the International Conference on Organic Synthesis-BOS2006, June 25-29, 2006, p.138.
  136. L. Villo, K. Danilas, A. Metsala, T. Pehk, O. Parve, Synthesis of 3,4-dideoxy ribose esters: A novel chemoenzymatic approach to synthesis of of activated, extended-chain glycoconjugates, Abstracts of the International Conference on Organic Synthesis-BOS2006, June 25-29, 2006, p.164.
  137. R. Tuvikene, K. Truus, O. Volobujeva, E. Mellikov, T.  Pehk,  Crucial gel-forming processes of red algal galactans. World Polymer Congress, 41st International Symposium on Macromolecules, MACRO 2006 (16-21 July 2006, Rio de Janeiro, Brazil) (CD-ROM) (-)./.../
  138. K. Siimer, T.  Kaljuvee, P. Christjanson, T.  Pehk, I.  Saks,. Effect of Alkylresorcinols on Curing Behaviour of Phenol-Formaldehyde Resins., ESTAC9-9th European Symposium on Thermal Analysis and Calorimetry, Krakow, Poland, 27-31 August 2006,  Abstracts p.165.
  139. K. Siimer, P. Christjanson, T. Pehk, T. Kaljuvee, A. Suurpere, D. O'Brock, I. Saks, I. Lasn, Urea-formaldehyde resins in Estonia: Manufacturing and characterisation,  Baltic Polymer Symposium 2006,  Birini Castle, September 20-22, 2006,  Abstracts, p.83.
  140. R. Tuvikene, K. Truus, T. Pehk,  (2006). Effective and sustainable extracting method for carrageenan industry. In: Sustainability of the Agri-Food Chain - 2006 EFFoST Annual Meeting / Total Food 2006 (7-9 November 2006 The Hague, The Netherlands). Abstract Book: Sustainability of the Agri-Food Chain - 2006 EFFoST Annual Meeting / Total Food 2006, The Hague 7-9 November 2006.  Elsevier, 2006, P7.03.
  141. K. Siimer, T.-M. Süld, P. Christjanson, T. Kaljuvee, T. Pehk, I. Lasn, Thermal behaviour of melamine-urea-formaldehyde resins, XXVIII National Conference on Calorimetry, Thermal Analysis and Chemical Thermodynamics, Milan, Italy, December 11-15, 2006, Abstracts P7-07.
  142. K. Siimer,  P.Christjanson, T. Kaljuvee, A. Suurpere, T. Pehk, I. Saks, I.  Lasn. (2007). Manufacturing and characterisation of Estonian urea-formaldehyde resins. Scientific proceedings of Riga Technical University. Series: Material Science and Applied Chemistry, 14, 48 - 55.
  143. Tuvikene, R.; Truus, K.; Kollist, A.; Volobujeva, O.; Mellikov, E.; Pehk, T. (2007). Carrageenan patterns from Kassari algal stratum (the Baltic Sea, Estonia): the molecular and gel structure levels. XIXth International Seaweed Symposium (26-31 March 2007 Kobe, Japan). The Japan Seaweed Association, 2007, 192 - 193.
  144. Tuvikene, Rando; Robal, Marju; Truus, Kalle; Volobujeva, Olga; Mellikov, Enn; Pehk, Tõnis (2007). Salt-induced branching patterns in carrageenan gels: dependence on galactan structure. 14th European Carbohydrate Symposium (2-7 September 2007 Lübeck, Germany). European Carbohydrate Organization, 2007, 410
  145. Aav, .; Kanger, T.; Pehk, T.; Lopp, M. (2007). Synthesis of Bicyclo[3.3.0]octanes – Interdediates for Substituted Cyclopentanes. In: Abstracts, 15th European Symposium on Organic Chemistry, 8-13 July 2007, Dublin, Ireland: 15th European Symposium on Organic Chemistry, Dublin, Ireland, 8-13 July 2007. Dublin: University College Dublin, 2007, 65. 
  146. R. Aav, T. Pehk, M. Lopp, Elucidation of structure of diastereoisomeric 1aH-oxireno[3,4]cyclopenta[1,2-b]furanes, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 12-13.
  147. K. Ilmarinen, V. Allikmaa, A. Ivanova, T. Pehk, M. Lopp, Synthesis of new N,N,N’,N’-tetrasubstituted derivatives of R,R-tartaric acid, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 40-41. 
  148. Siimer K, Kaljuvee T, Christjanson P, Pehk T, Saks, Cure-accelerated phenol-formaldehyde resins,  Finnish Chemical Congress, Helsinki, Finland, 27-29.03.2007, Abstracts of Finnish Chemical Congress, Helsinki, Finland, Association of Finnish Chemical Societies, 38, 2007. 
  149. Jõgi, A.,  Paju, A.,  Pehk, T.,  Siirde, K., Lopp, M.,  Synthesis of 4’-benzyl substituted nucleoside analogues, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 42-43.
  150. Siimer K,  Kaljuvee T, Christjanson P, Pehk T, Saks I,  Curing behaviour of resol phenol-formaldehyde resins,  Baltic Polymer Symposium 2007, Lithuania, Druskininkai, September 19-21, 2007, Baltic Polymer Symposium 2007: Programme and book of abstracts, Lithuania, Druskininkai, Vilnius University, 131, 2007.
  151. K. Lippur, K. Kriis, T. Kailas, A.-M. Müürisepp, T. Pehk, T. Kanger, Synthesis of substituted (2S,2’S)-bimorpholines, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 82-83.
  152.  A. Niidu, A. Paju, K. Kislitsõn, T. Kailas, A.-M. Müürisepp, T. Pehk, M. Lopp, Synthesis of chiral THF analogues, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 104-105.

  153. J. Paju, T. Pehk, P. Christjanson, The study of formation mechanism of the resol type phenol-formaldehyde resins with variation of alkali content, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 109-110.
  154. M. Päri, A. Paju, T. Pehk, K. Siirde, M. Lopp, Synthesis of novel acyclic nucleoside analogues, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 125-126.
  155. I. Reile, A. Paju, M. Eek, T. Pehk, M. Lopp, Aerobic oxidation of cyclopentane-1,2-diols to cyclopentane-1,2-diones on Pt/C catalyst, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 130-131.
  156. K. Siimer, T. Kaljuvee, P. Christjanson, T. Pehk, I. Lasn, I. Saks, Curing behaviour of melamine-urea-formaldehyde resins, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 151-152.
  157. R. Tuvikene, M. Robal, A.-L. Ikart, K. Truus, E. Mellikov, T. Pehk, Isolation and chemical treatment procedures for high quality carrageenans, Abstracts of 30th Estonian Chemistry Days, Tartu 2007, p. 169-170.
  158. Paju, A.; Hohlova, N.; Pehk, T.; Lopp, M. (2008). Asymmetric oxidation of 3-aminoethyl-1,2-cyclopentanedione: synthesis of spiro-g-lactone-g-lactam. In: Balticum Organicum Synteticum. International Conference on Organic Syntheis. Progam and Abstract Book. Vilnius 2008: (Toim.) Butkus, E.. Vilnius, Leedu:, 2008, 143.
  159. Reile, I.; Paju, A.; Pehk, T.; Lopp, M. (2008). Mechanism of the asymmetric oxidation of cyclopentane-1,2-diones. In: Balticum Organicum Syntheticum International Conference on Organic Synthesis. Program and Abstract Book. Vilnius 2008: Balticum Organicum Syntheticum International Conference on Organic Synthesis. Vilnius, June 29-July 2, 2008. (Toim.) Butkus, E.. Vilnius:, 2008, 155.
  160. Siimer, K.; Christjanson, P.; Kaljuvee, T.; Pehk, T.; Lasn, I.; Saks, I. (2008). Melamine-urea-formaldehyde resins for particleboards. In: Programme and Abstracts of Baltic Polymer Symposium 2008: Baltic Polymer Symposium 2008, Otepää, Estonia, May 13-16, 2008. Tallinn, Eesti: Tallinn University of Technology, 2008, 35.
  161. Paju, J.; Pehk, T.; Christjanson, P. (2008). Structure of phenol-formaldehyde polycondensates. In: Programme and abstracts of Baltic Polymer Symposium 2008: Baltic Polymer Symposium 2008, Otepää, Estonia, May 13-16, 2008. Tallinn, Eesti: Tallinn University of Technology, 2008, 17.
  162. Jõgi, A.; Paju, A.; Pehk, T.; Lopp, M. (2008). Synthesis of 4'-substituted 2',3'-dideoxynucleoside analogues. In: Balticum Organicum Syntheticum. International Conference on Organic Synthesis. Program and Abstract Book. Vilnius, 2008: Balticum Organicum Syntheticum. International Conference on Organic Synthesis. June 29-July 2, 2008, Vilnius. , 2008, 97.
  163. Niidu, A.; Kislitsõn, K.; Paju, A.; Kailas, T.; Müürisepp, A.-M.; Pehk, T.; Lopp, M. (2008). Synthesis of Chiral THF-analogues. In: Balticum Organicum Syntheticum. International Conference on Organic Synthesis. Program and Abstract Book. Vilnius 1008 : Balticum Organicum Syntheticum. International Conference on Organic Synthesis. June 29-July 2, 2008, Vilnius. , 2008.
  164. Päri, M.; Paju, A.; Pehk, T.; Siirde, K.; Lopp, M. (2008). Synthesis of novel acyclic nucleoside analogues. In: Balticum Organicum Syntheticum. Inernational Conference on Organic Synthesis. Program and Abstract Book, Vilnius, 2008. : Balticum Organicum Syntheticum. Inernational Conference on Organic Synthesis. June, 29-July,2, 2008, Vilnius. (Toim.) Butkus, E.., 2008, 145.
  165. Siimer, K.; Kaljuvee, T.; Christjanson, P.; Pehk, T.; Saks, I. (2008). Thermal behaviour of hydroxymethyl compounds as models for adhesive resins. In: Abstract Book of 14th ICTAC - International Congress on Thermal Analysis and Calorimetry: 14th ICTAC - International Congress on Thermal Analysis and Calorimetry, Sao Pedro, Brazil, 14-18 September 2008. Sao Pedro, Brazil:, 2008, 42.
  166. Siimer, K.; Kaljuvee, T. Christjanson, P.; Pehk, T.; Lasn, I.; Saks, I. (2008). Urea-Formaldehyde Resins for Low Formaldehyde Emission Particleboards. In: Book of abstracts of The Polymer Processing Society 24th Annual Meeting – PPS-24: The Polymer Processing Society 24th Annual Meeting – PPS-24, Salerno, Italy, June 15-19 2008. Salerno, Itaalia: Polymer Processing Society, 2008, II.478 - II.478.
  167. Oja Acik, I.; Madarász, J.; Heinmaa, I.; Pehk, T.; Tõnsuaadu, K.; Krunks, M.; Pokol, G.; Niinistö, L. (2008). Titanium(IV) Acetylacetonate Xerogels for Processing Titania Films: Structure and Thermal Analysis. In: 14th International Congress on Thermal Analysis and Calorimetry; Book of Abstracts, VI Brazilian Congress on Thermal Analysis and Calorimetry, September 14-18, 2008, Sao Pedro-SP-Brazil: Sao Pedro-SP-Brazil:, 2008, OP-C06.
  168. Tuvikene, Rando; Robal, Marju; Truus, Kalle; Pehk, Tõnis (2009). Thermal stability of pyruvated galactans from the red alga Coccotylus truncatus. Fourth International Symposium on the Separation and Characterization of Natural and Synthetic Macromolecules, SCM-4 (28-30 January 2009 Amsterdam, The Netherlands). (Toim.) Ordibo bvba. Royal Library Albert I, 2009, pB05. 5.2.
  169. Villo, L.; Pehk, T.; Parve, O. (2010). A chemoenzymatic stereoselective synthesis of deoxy sugar esters of amino acids. In: Program and Abstracts BOS 2010 International Conference on Organic Synthesis: BOS 2010 International Conference on Organic Synthesis, Riga - Latvia, June 27 - 30, 2010, p205.
  170. Kriis, K.; Ausmees, K.; Pehk, T.; Lopp, M.; Kanger, T. (2010). A novel diastereoselective multicomponent cascade reaction. In: Program and Abstracts BOS 2010 International Conference on Organic Synthesis: BOS 2010 International Conference on Organic Synthesis, Riga - Latvia, June 27 - 30, 2010. , 2010, 117.
  171. Tuvikene, Rando; Robal, Marju; Truus, Kalle; Pehk, Tõnis (2010). Degradation of red algal galactans in subcritical water. The 10th International Hydrocolloids Conference (20-24 June 2010 Shanghai, China). The 10th International Hydrocolloids Conference Organising Committee, 2010, 115 - 116. 5.2.
  172. Aav, R.; Pehk, T.; Tamp, S.; Tamm, T.; Kudrjašova, M.; Parve, O.; Lopp, M. (2010). Prediction and assignment of coupling constants of diastereomeric cyclopentane derivatives. In: Program and abstracts: BOS 2010 International Conference on Organic Synthesis: BOS 2010, International Conference on Organic Synthesis, Riga, Latvia, June 27-30. , 2010, 47. 5.2.
  173. Tuvikene, Rando; Robal, Marju; Truus, Kalle; Pehk, Tõnis (2010). Punavetikagalaktaanide lagunemine subkriitilises vees. XXXI Eesti Keemiapäevad, Teaduskonverentsi teesid (28. aprill 2010,Tallinn, Eesti). Tallinn: Eesti Keemia Selts, 2010, 78. 5.2.
  174. Robal, Marju; Tuvikene, Rando; Truus, Kalle; Volobujeva, Olga; Mellikov, Enn; Pehk, Tõnis (2010). Thermal stability of red algal polysaccharides: a structure-property study.The 10th International Hydrocolloids Conference (20-24 June 2010 Shanghai, China). The 10th International Hydrocolloids Conference Organising Committee, 2010, 129. 5.2.
  175. Robal, Marju; Tuvikene, Rando; Truus, Kalle; Volobujeva, Olga; Mellikov, Enn; Pehk, Tõnis (2010). Vetikapolüsahhariidide termostabiilsus: struktuur-omadus seosed.XXXI Eesti Keemiapäevad, Teaduskonverentsi teesid (28. aprill 2010, Tallinn, Eesti). Tallinn: Eesti Keemia Selts, 2010, 19.
  176. Paju Anne, Niidu Allan, Lumi Priit, Matkevitš Katharina, Oja Karolin, Pehk Tõnis, Lopp Margus (2010) Catalytic asymmetric synthesis of gamma-lactone acids. In: Program and abstracts: BOS 2010 International Conference on Organic Synthesis: BOS 2010, International Conference on Organic Synthesis, Riga, Latvia, June 27-30. , 2010, 108. 5.2.
  177. Jõgi A., Jäälaid R., Paju A., Pehk T., Lopp M. (2010) The synthesis of the 4’-substituted nucleoside analogues and their biological activity. In: Program and abstracts: BOS 2010 International Conference on Organic Synthesis: BOS 2010, International Conference on Organic Synthesis, Riga, Latvia, June 27-30. , 2010, 105. 5.2. 
  178. Suun, S.; Pehk, T.; Kaljuste, K.; Tamp, S.; Jarvet, J.; Aav, R. Bitsüklo[3.3.0]oktaanide suhtelise konfiguratsiooni määramine 1H-13C spinn-spinn sidestuskonstantide abil. In: Teaduskonverentsi teesid: XXXII Eesti Keemiapäevad. Tartu Ülikooli Kirjastus, 2011, 96.


 
 
 
 


    Books and popular articles (in Estonian)

  1. H. Karik, T.Erelt, H. Hödrejärv, J. Kann, Ü. Lille, V. Mikkal, l. Mölder, V. Past, T. Pehk, M. Raukas, L. Tamm, T. Tenno, H. Timotheus, A. Tuulmets, Inglise-Eesti-Vene  Keemia sõnaraamat, 703 lk, Eesti  Entsüklopeediakirjastus, 1998, Tallinn

  2. T. Pehk, (2000) Endel Lippmaa 70. Eesti Teaduste Akadeemia Toimetised. Füüsika. Matemaatika, 193 - 195.
  3. H. Karik, H. Hödrejärv, J. Kann, Ü. Lille, V. Mikkal, l. Mölder, V. Past, T. Pehk, M. Raukas, L. Tamm, T. Tenno, H. Timotheus, A. Tuulmets, Keemianomenklatuur, 158 lk, Eesti Entsüklopeediakirjastus, 2000, Tallinn
  4. T. Kändler, J.  Lõhmus, T.  Pehk, (2002). Nobeli teaduspreemiad 2002. Horisont : Inimene. Loodus. Universum, (6), 10 - 13.
  5. T. Pehk, Need ülilihtsad vee molekulid, Horisont, 6, 2003, p 32-33.
  6. T. Pehk, Metatees on kui laulumäng, Horisont 6, 2005, p. 28-29.
  7. T. Pehk, Kiraalsete molekulide tuumamagnetresonantsspektroskoopia, Eesti Vabariigi teaduspreemiad, 2003, Eesti Teaduste Akadeemia, p.  42-51
  8. T. Pehk, Keemia KBFIs,  (2006) Teadusmõte Eestis, Täppisteadused, Eesti Teaduste Akadeemia,  p. 181-186
  9. T. Pehk (2011), Chemistry in National Institute of Chemical Physics and Biophysics, in Research in Estonia, Present and Future, Estonian Academy of Sciences, p. 338-341.
348+7+178+9=542