Toomas Välimäe, DSc, 1989, juh. Tõnis Pehk. Bioaktiivsete ühendite C-13 TMR spektroskoopia. Tartu Ülikool

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).

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)

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).

K. Siimer, 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).

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.

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)

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).

P. Christjanson, T. Pehk, K. Siimer, Hydroxymethylation and Polycondensation Reactions in Urea-Formaldehyde Resin Synthesis, Journal of Applied Polymer Science, accepted (2005).

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.

T. Kanger, K. Raudla, R. Aav, A.-M. Müürisepp, T. Pehk, M. Lopp, Synthesis and Derivatization of Bis-nor Wieland-Miescher Ketone, Synthesis, (2005), published ahead of print, http://www.thieme-connect.com/ejournals/toc/synthesis/2543

T. Paalme, I. Nisamedtinov, K. Abner, T.-M. Laht, M. Drews and 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,2005, accepted

Vallikivi I., Fransson L., K. Hult, Järving I., Pehk T., Samel N., Tõugu V., Villo L., Parve O., The Modelling and kinetic investigation of the lipase-catalysed acetylation of stereoisomeric prostaglandins. Journal of Molecular Catalysis B: Enzymatic, 35, (2005) 62-69.

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.

Paju A., Kanger T., Pehk T., Eek M., and Lopp M., A short enantioselective synthesis of homocitric acid-γ-lactone and 4-hydroxy-homocitric acid-γ-lactones, Tetrahedron, 60, (2004), 9081-9084.

Vallikivi I., Järving I., Pehk T., Samel N., Tõugu V. and Parve O., NMR Monitoring of Lipase-catalyzed Reactions of Prostaglandins; Preliminary Estimation of Reaction Velocities, Journal of Molecular Catalysis B: Enzymatic, 32, (2004) 15-19.

288. 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

289. 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.

290. Ü. Lille, I. Heinmaa, T. Pehk, Molecular model of Estonian kukersite kerogen evaluated by 13C MAS NMR spectra, Fuel, 2003, 82, 799-804.

291. 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.

292. 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

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. 279, (2003), 4122-4132.

281. 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.

282. T. Kanger, K. Kriis, T. Pehk, A.-M. Müürisepp, M. Lopp, Asymmetric synthesis of novel C2-symmetric bimorpholines, Tetrahedron: Asymmetry, 2002, 13, 857-865.

283. A. Paju, T. Kanger, T. Pehk, M. Lopp, Direct asymmetric α-hydroxylation of 2-hydroxymethyl ketones, Tetrahedron, 2002, 58, 7321-7326.

284. 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.

285. 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.

286. 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

287. 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, 2002, 13(22), 2439-2448.

1. Valmsen K., Järving I., Boeglin W. E., Varvas K., Koljak R., Pehk T, Brash A. R., Samel N. The origin of 15R-prostaglandins in the Carribean coral Plexaura homomalla: molecular cloning and expression of a novel cyclooxygenase, Proc. Natl. Acad. Sci. USA, 98, (2001), 7700 – 7705.

273. 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.

274. 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.

275. 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.

276. 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.

277. 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

278. K. Kriis, T. Kanger, T. Pehk, M. Lopp, Synthesis of (2S, 2S’)-Bimorpholine, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 173–179.

279. 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.

280. J. Peterson, V. Allikmaa, T. Pehk, M. Lopp, Fragmentation of PAMAM dendrimers in methanol, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 167–172.

270. A. Paju, T. Kanger, T. Pehk, M. Lopp, Asymmetric oxydation of 1,2-cyclopentanediones, Tetrahedron Letters, 2000, 41(35), 6883-6887.

271. R. Aav, T. Kanger, T. Pehk, M. Lopp, Synthesis of the AB-Ring of 9,11-Secosterols, Synlett, 2000(4), 529-531

Toomas Välimäe, DSc, 1989, superv. Tõnis Pehk. Bioaktiivsete ühendite C-13 TMR spektroskoopia. Tartu Ülikool

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).

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)

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).

K. Siimer, 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).

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.

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)

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).

P. Christjanson, T. Pehk, K. Siimer, Hydroxymethylation and Polycondensation Reactions in Urea-Formaldehyde Resin Synthesis, Journal of Applied Polymer Science, accepted (2005).

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.

T. Kanger, K. Raudla, R. Aav, A.-M. Müürisepp, T. Pehk, M. Lopp, Synthesis and Derivatization of Bis-nor Wieland-Miescher Ketone, Synthesis, (2005), published ahead of print, http://www.thieme-connect.com/ejournals/toc/synthesis/2543

T. Paalme, I. Nisamedtinov, K. Abner, T.-M. Laht, M. Drews and 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,2005, accepted

Vallikivi I., Fransson L., K. Hult, Järving I., Pehk T., Samel N., Tõugu V., Villo L., Parve O., The Modelling and kinetic investigation of the lipase-catalysed acetylation of stereoisomeric prostaglandins. Journal of Molecular Catalysis B: Enzymatic, 35, (2005) 62-69.

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.

Paju A., Kanger T., Pehk T., Eek M., and Lopp M., A short enantioselective synthesis of homocitric acid-γ-lactone and 4-hydroxy-homocitric acid-γ-lactones, Tetrahedron, 60, (2004), 9081-9084.

Vallikivi I., Järving I., Pehk T., Samel N., Tõugu V. and Parve O., NMR Monitoring of Lipase-catalyzed Reactions of Prostaglandins; Preliminary Estimation of Reaction Velocities, Journal of Molecular Catalysis B: Enzymatic, 32, (2004) 15-19.

288. 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

289. 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.

290. Ü. Lille, I. Heinmaa, T. Pehk, Molecular model of Estonian kukersite kerogen evaluated by 13C MAS NMR spectra, Fuel, 2003, 82, 799-804.

291. 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.

292. 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

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. 279, (2003), 4122-4132.

281. 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.

282. T. Kanger, K. Kriis, T. Pehk, A.-M. Müürisepp, M. Lopp, Asymmetric synthesis of novel C2-symmetric bimorpholines, Tetrahedron: Asymmetry, 2002, 13, 857-865.

283. A. Paju, T. Kanger, T. Pehk, M. Lopp, Direct asymmetric α-hydroxylation of 2-hydroxymethyl ketones, Tetrahedron, 2002, 58, 7321-7326.

284. 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.

285. 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.

286. 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

287. 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, 2002, 13(22), 2439-2448.

1. Valmsen K., Järving I., Boeglin W. E., Varvas K., Koljak R., Pehk T, Brash A. R., Samel N. The origin of 15R-prostaglandins in the Carribean coral Plexaura homomalla: molecular cloning and expression of a novel cyclooxygenase, Proc. Natl. Acad. Sci. USA, 98, (2001), 7700 – 7705.

273. 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.

274. 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.

275. 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.

276. 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.

277. 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

278. K. Kriis, T. Kanger, T. Pehk, M. Lopp, Synthesis of (2S, 2S’)-Bimorpholine, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 173–179.

279. 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.

280. J. Peterson, V. Allikmaa, T. Pehk, M. Lopp, Fragmentation of PAMAM dendrimers in methanol, Proc. Estonian Acad. Sci. Chem., 2001, 50(3), 167–172.

270. A. Paju, T. Kanger, T. Pehk, M. Lopp, Asymmetric oxydation of 1,2-cyclopentanediones, Tetrahedron Letters, 2000, 41(35), 6883-6887.

271. R. Aav, T. Kanger, T. Pehk, M. Lopp, Synthesis of the AB-Ring of 9,11-Secosterols, Synlett, 2000(4), 529-531