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Olen nõus

Mare Piirsalu

https://www.etis.ee/CV/Mare_Piirsalu/est
6.09.1950
737 5236
mare.piirsalu@ut.ee

Teenistuskäik

Töökohad ja ametid
01.09.2016–...   
Tartu Ülikool, Loodus- ja täppisteaduste valdkond, keemia instituut, analüütilise ja füüsikalise keemia teadur (1,00)
01.01.2016–31.08.2016   
Tartu Ülikool, Loodus- ja täppisteaduste valdkond, keemia instituut, analüütilise ja füüsikalise keemia teadur (1,00)
01.09.2014–31.12.2015   
Tartu Ülikool, Loodus- ja tehnoloogiateaduskond, Tartu Ülikooli Keemia Instituut, analüütilise ja füüsikalise keemia teadur (1,00)
01.09.2011–31.08.2014   
Tartu Ülikool, Loodus- ja tehnoloogiateaduskond, Tartu Ülikooli Keemia Instituut, analüütiise ja füüsikalise keemia teadur (1,00)
01.09.2008–31.08.2011   
Tartu Ülikool, Loodus- ja tehnoloogiateaduskond, Tartu Ülikooli Keemia Instituut, analüütilise ja füüsikalise keemia teadur (1,00)
01.01.2008–31.08.2008   
Tartu Ülikool, Loodus- ja tehnoloogiateaduskond, Tartu Ülikooli Keemia Instituut, analüütilise ja füüsikalise keemia teadur (1,00)
01.08.2007–31.12.2007   
Tartu Ülikool, Loodus- ja tehnoloogiateaduskond, Tartu Ülikooli Keemia Instituut, analüütilise ja füüsikalise keemia teadur (1,00)
01.09.2005–31.07.2007   
Tartu Ülikool, Füüsika-keemiateaduskond, Keemilise füüsika instituut, analüütilise ja füüsikalise keemia teadur (1,00)
01.06.2005–31.08.2005   
Tartu Ülikool, Füüsika-keemiateaduskond, Keemilise füüsika instituut, füüsikalise ja analüütilise keemia erakorraline teadur (1,00)
2005–2005   
Tartu Ülikool, Füüsika-keemiateaduskond, Keemilise füüsika instituut, Analüütilise keemia õppetool, füüsikalise ja analüütilise keemia erakorraline teadur (1,00)
01.01.2005–31.12.2007   
Tartu Ülikool, Füüsika-keemiateaduskond, Keemilise füüsika instituut, Analüütilise keemia õppetool; Teadur
01.06.2002–31.05.2005   
Tartu Ülikool, Füüsika-keemiateaduskond, Keemilise füüsika instituut, analüütilise ja füüsikalise keemia teadur (1,00)
01.01.1993–31.12.2005   
Tartu Ülikooli,Füüsika-keemiateaduskond, Keemilise füüsika instituut; teadur
01.01.1990–31.12.1993   
Tartu Ülikool, Füüsika-keemiateaduskond, Keemilise kineetika ja katalüüsi laboratooorium; teadur
01.01.1976–31.12.1990   
Tartu Ülikool, Füüsika-keemiateaduskond, Orgaanilise keemia kateeder; lepinguliste tööde nooremteadur
01.01.1974–31.12.1976   
Tallinna Polütehnilise Instituut, Sanitaartehnika Uurimislaboratoorium; Vaneminsener
 
 
Haridustee
2003–2003   
Doctor Philosophiae kraad analüütilise ja füüsikalise keemia erialal
2002–2003   
Tartu Ülikool, Füüsika-keemiateaduskond, Keemiaosakond; Doktorant
1997–1997   
Tartu Ülikool, Füüsika-keemiateaduskond, Keemiaosakond; Magistrant
1997–1997   
Magister Scientiarumi kraad füüsikalise ja analüütilise keemia erialal
1974–1974   
Baccalaureus Scientiarumi kraad keemia (orgaanilise keemia) erialal
1969–1974   
Tartu Ülikool, Füüsika-keemiateaduskond, Keemiaosakond; Üliõpilane
 
 
Teadusorganisatsiooniline ja -administratiivne tegevus
-

Kvalifikatsioon

Teaduskraadid
Mare Piirsalu, doktorikraad, 2003, (juh) Ilmar Koppel; Vilve Nummert, Substituent,temperature and solvent effects on the alkaline hydrolysis of substituted phenyl and alkyl esters of benzoic acid, Tartu Ülikool, Füüsika-keemiateaduskond.
Mare Piirsalu, magistrikraad (teaduskraad), 1997, (juh) Vilve Nummert, Alküülbensoaatide ja asendatud fenüülbensoaatide leeliselise hüdrolüüsi kineetika uurimine, Tartu Ülikool, Füüsika-keemiateaduskond.
 
 
Teadustöö põhisuunad
ETIS KLASSIFIKAATOR: 4. Loodusteadused ja tehnika; 4.11. Keemia ja keemiatehnika; TÄPSUSTUS: Keemiliste ühendite reaktsioonivõime ja omaduste eksperimentaalne uurimine

Jooksvad projektid

Lõppenud projektid

Publikatsioonid

Klass
Aasta
Publikatsioon
 
1.1.
2018
Nummert, Vilve; Piirsalu, Mare; Toom, Lauri; Kesvatera Tõnu; Leito, Ivo; Koppel, Ilmar A. (2018).

Effect of charged and ortho substituents on 17O NMR chemical shifts of substituted phenyl tosylates in DMSO

. Journal of Physical Organic Chemistry, 31, 1.10.1002/poc.3870.
1.1.
2018
Kütt, Agnes; Selberg, Sigrid; Kaljurand, Ivari; Tshepelevitsh, Sofja; Heering, Agnes; Darnell, Astrid; Kaupmees, Karl; Piirsalu, Mare; Leito, Ivo (2018). pKa values in organic chemistry – Making maximum use of the available data. Tetrahedron Letters, 59 (42), 3738−3748.10.1016/j.tetlet.2018.08.054.
1.1.
2017
Nummert, V.; Piirsalu, M.; Vahur, S.; Toom, L.; Leito, I.; Koppel, I.A. (2017). Effects of neutral and charged substituents on the infrared carbonyl stretching frequencies in phenyl and alkyl benzoates in DMSO. Journal of Physical Organic Chemistry, 30 (3), e3608 .10.1002/poc.3608.
1.1.
2013
Nummert, V.; Piirsalu, M.; Koppel, I.A. (2013). Prediction of ortho substituent effect in alkaline hydrolysis of phenyl esters of substituted benzoic acids in aqueous acetonitrile. Central European Journal of Chemistry, 11 (12), 1964−1975.10.2478/s11532-013-0321-5.
1.1.
2013
Nummert, V.; Piirsalu, M.; Koppel, I.A. (2013). Prediction of ortho substituent effect in alkaline hydrolysis of substituted phenyl benzoates in aqueous acetonitrile. Journal of Physical Organic Chemistry, 26 (4), 352−359.10.1002/poc.3096.
1.1.
2012
Nummert, V.; Mäemets, V.; Piirsalu, M.; Koppel, I.A. (2012). 17O NMR studies of ortho-substituents in substituted phenyl tosylates. Magnetic Resonance in Chemistry, 50 (10), 696−704.10.1002/mrc.3864.
1.1.
2011
Nummert, V.; Mäemets, V.; Piirsalu, M.; Vahur, S.; Koppel, I.A. (2011). 17O NMR study of ortho and alkyl substituent effects in substituted phenyl and alkyl esters of benzoic acids. Collection of Czechoslovak Chemical Communications, 12 (76), 1737−1763.10.1135/cccc2011100.
1.1.
2011
Nummert, V.;Maemets, V.;Piirsalu, M.;Koppel, I.A. (2011). Influence of ortho substituentson 17O NMR chemical shifts in phenyl esters of substituted benzoic acids. Journal of Physical Organic Chemistry, 24 (7), 539−552.10.1002/poc.1784.
5.2.
2011
Nummert, V.; Piirsalu, M.; Mäemets, V.; Koppel, I.A. (2011). Orto-substituentide mõju asendatud fenüülbensoaatide 17O TMR keemilistele nihetele. XXXII Eesti Keemiapäevad Teaduskonverentsi Teesid: XXXII Eesti Keemiapäevad;Tartu; 14-16 Aprill,2011. Tartu: Tartu Ülikooli Kirjastus, 65−65.
1.1.
2010
Nummert, V.; Piirsalu, M.; Koppel, I.A. (2010). Influence of solvent on the ortho substituent effect in the alkaline hydrolysis of phenyl esters of substituted benzoic acids. Journal of Physical Organic Chemistry, 23 (6), 497−504.10.1002/poc.1628.
1.1.
2009
Nummert, V.; Piirsalu, M.; Mäemets, V.; Vahur, S.; Koppel, I. (2009). Effect of ortho substituents on carbonyl carbon C-13 NMR chemical shifts in substituted phenyl benzoates. Journal of Physical Organic Chemistry, 22 (12), 1155−1165. DOI: 10.1002/poc.1569.
1.1.
2009
Nummert, V.; Piirsalu, M.; Vahur, S.; Travnikova, O.; Koppel, I. A. (2009). Kinetic study of hydrolysis of benzoates. part xxvii. ortho substituent effect in alkaline hydrolysis of phenyl esters of substituted benzoic acids in aqueous Bu4NBr. Collection of Czechoslovak Chemical Communications, 74 (1), 29−42. DOI: 10.1135/cccc2008019.
1.1.
2007
Nummert, V.;Piirsalu, M.;Koppel, I.A. (2007). Variation of the temperature-depenent substituent effects with solvent in alkaline hydrolysis of substituted phenyl and alkyl benzoates and phenyl tosylates. Journal of Physical Organic Chemistry, 20, 778−790.
1.1.
2006
Nummert, V.; Travnikova, O.; Vahur, S.; Leito, I.; Piirsalu, M.; Mäemets, V.; Koppel, I.; Koppel, I.A. (2006). Influence of Substituents on the Infrared Stretching Frequencies of Carbonyl Group in Esters of Benzoic Acid. Journal of Physical Organic Chemistry, 19 (10), 654−663. DOI: 10.1002/poc.1112.
1.1.
2006
Nummert , V.; Piirsalu , M.; Koppel , I.A. (2006). Kinetic study of hydrolysis of benzoates. Part XXVI. Variation of the substituent effect with solvent in alkaline hydrolysis of substituted alkyl benzoates. Collection of Czechoslovak Chemical Communications, 71, 1557−1570.
1.1.
2006
Nummert, V.; Piirsalu, M.; Maemets, V.; Koppel, I. (2006). Kinetic study of hydrolysis of benzoates. Part XXV. Ortho substituent effect in alkaline hydrolysis of phenyl esters of substituted benzoic acids in water. Collection of Czechoslovak Chemical Communications, 71 (1), 107−128.
1.1.
2005
Nummert, V.; Piirsalu, M.; Lepp, M.; Maemets, V.; Koppel, I. (2005). Kinetic study of alkaline hydrolysis of substituted phenyl tosylates. XXII. Variation of ortho substituent effect with solvent. Collection of Czechoslovak Chemical Communications, 70 (2), 198−222.
1.1.
2005
Nummert, V.; Piirsalu, M.; Maemets, V.; Koppel, I. (2005). Kinetic study of hydrolysis of benzoates. Part XXIV - Variation of the ortho substituent effect with solvent in the alkaline hydrolysis of substituted phenyl benzoates. Journal of Physical Organic Chemistry, 18 (11), 1138−1144.
1.1.
2002
Nummert, V.; Piirsalu, M. (2002). Kinetic study of hydrolysis of benzoates. Part XXIII - Influence of the substituent and temperature on the kinetics of the alkaline hydrolysis of alkyl benzoates in aqueous 2.25 M Bu4NBr and 80% DMSO. Journal of Physical Organic Chemistry, 15 (6), 353−361.
1.1.
2002
Nummert, V.; Piirsalu, M. (2002). Separation of ortho inductive, resonance and steric terms in alkaline hydrolysis of substituted phenyl benzoates and phenyl tosylates. Collection of Czechoslovak Chemical Communications, 67 (12), 1833−1857.
1.1.
2000
Nummert, V.; Piirsalu, M. (2000). Kinetic study of hydrolysis of benzoates. Part XXII. Variation of the ortho inductive, resonance and steric terms with temperature in the alkaline hydrolysis of substituted phenyl benzoates in aqueous 2.25 M Bu4NBr. Journal of the Chemical Society-Perkin Transactions 2, 3, 583−594.
1.2.
1997
Nummert, V.; Piirsalu, M. (1997). Kinetic Study of Hydrolysis of Benzoates. XXI. Influence of Temperature on Ortho Effect for 80 % Aqueous Dimethyl Sulfoxide Solution. Organic Reactivity, 31, 101−109.
1.2.
1996
Nummert, V.; Piirsalu, M. (1996). Kinetic Study of Hydrolysis of Benzoates. XX. Results of Kinetic Measurements of Alkaline Hydrolysis of Substituted Phenyl Benzoates in 80 % Aqueous Dimethyl Sulfoxide at Various Temperatures. Organic Reactivity, 30, 95−102.
1.2.
1996
Nummert, V.; Piirsalu, M.; Palm, V. (1996). Kinetic Study of Hydrolysis of Benzoates. XIX. Influence of Temperature on Ortho Effect for Water Solution. Isokinetic Dependence in the Case of Additional Ortho Induction Effect. Organic Reactivity, 30, 85−94.
1.2.
1995
Nummert, V.; Piirsalu, M. (1995). Kinetic Study of Hydrolysis of Benzoates. XVIII. Results of Kinetic Measurements of Alkaline Hydrolysis of Substituted Phenyl Benzoates in Water at Various Temperatures. Organic Reactivity, 29, 109−115.
1.2.
1993
Nummert, V.; Piirsalu, M.; Palm, V. (1993). Kinetic Study of Alkaline Hydrolysis of Substituted Phenyl Tosylates. XXI. Influence of Solvent on Ortho Effect. Organic Reactivity, 28, 82−87.
1.1.
1990
Nummert, VM.; Piirsalu, MV.; Palm, VA. (1990). Kinetic-study of alkaline-hydrolysis of substituted phenyl tosylates. 18. Results of kinetic measurements of o-substituted tosylates in 80-percent aqueous dimethylsulfoxide. Organic Reactivity, 27, 99−127.
1.1.
1990
Nummert, VM.; Piirsalu, MV. (1990). Kinetic-study of alkaline-hydrolysis of substituted phenyl tosylates. 19. Discussion of results of kinetic measurements for o-substituted tosylates in 80-percent aqueous dimethylsulfoxide. Organic Reactivity, 27, 217−240.
1.1.
1986
Nummert, V.; Ojassalu, K.; Piirsalu, M. (1986). Kinetic-study of alkaline-hydrolysis of substituted phenyl tosylates. 15. Hydrolysis of meta-substituted and para-substituted tosylates in concentrated aqueous n-bu4nbr solutions. Organic Reactivity, 23 (1), 83−95.
1.1.
1984
Nummert, V.; Parismaa, R.; Piirsalu, M. (1984). Kinetic study of benzoate hydrolysis. 16. Alkaline-hydrolysis of m- and p-substituted benzoates in concentrated aqueous n-bu4nbr and et4nbr salt solutions. Organic Reactivity, 21 (1), 83−97.
1.1.
1982
Nummert, V.; Piirsalu, M. (1982). Kinetic-study of alkaline-hydrolysis of substituted phenyl tosylates. 12. Hydrolysis of tosylates with electroneutral substituents in the presence of nacl and naclo4. Organic Reactivity, 19 (1), 67−81.
1.1.
1982
Nummert, V.; Piirsalu, M.; Pussa, T.; Linntam, A. (1982). Kinetic-study of hydrolysis of benzoates. 15. Alkaline-hydrolysis of ortho-oh-phenyl benzoate. Organic Reactivity, 19 (1), 82−101.
1.1.
1981
Nummert, V.; Eek, M.; Piirsalu, M. (1981). Kinetic-study of hydrolysis of benzoates. 14. Alkaline-hydrolysis in 80-percent aqueous dimethylsulfoxide. Organic Reactivity, 18 (3), 363−374.
1.1.
1979
Nummert, V.; Piirsalu, M. (1979). Kinetic-study of hydrolysis of benzoates. 13. Alkaline-hydrolysis of n(ch3)+3 substituted alkyl benzoates in the presence of NaClO4 and NaCl. Organic Reactivity, 16 (2), 251−260.
1.1.
1978
Nummert, V.; Piirsalu, M.; Alakivi, I. (1978). Kinetic study of alkaline-hydrolysis of substituted phenyl tosylates. 11. Hydrolysis in presence of naclo4(i). Organic Reactivity, 15 (1), 133−143.
1.1.
1978
Nummert, V.; Piirsalu, M. (1978). Study of hydrolysis kinetics of benzoates. 12. Alkaline-hydrolysis of alkyl benzoates in presence of naclo4 and nacl(i). Organic Reactivity, 15 (2), 240−257.
1.1.
1977
Nummert, V.; Piirsalu, M. (1977). Investigation of kinetics of hydrolysis of benzoates. 11. Alkaline-hydrolysis of substituted phenyl benzoates in presence of naclo4 (ii). Organic Reactivity, 14 (2), 263−279.
1.2.
1975
Nummert, V.M.; Piirsalu, M.V. (1975). Investigation of Kinetics of Hydrolysis of Benzoates. VIII. Acidic Hydrolysis of o-Substituted Phenyl Benzoates in Water at Various Temperatures. Reaktsionnaya Sposobnost Organicheskikh Soedinenii, 11, 921−932.
1.2.
1975
Nummert, V.M.; Piirsalu, M.V. (1975). Investigation of Kinetics of Hydrolysis of Benzoates. VI. Alkaline Hydrolysis of o-Substituted Phenyl Benzoates at Various Temperatures in Water. Reaktsionnaya Sposobnost Organicheskikh Soedinenii, 11, 899−910.
3.01.2020

Mare Piirsalu

https://www.etis.ee/CV/Mare_Piirsalu/eng
6.09.1950
737 5236
mare.piirsalu@ut.ee

Career

Institutions and positions
01.09.2016–...   
University of Tartu, Faculty of Science and Technology, Institute of Chemistry, Research Fellow in Analytical and Physical Chemistry (1,00)
01.01.2016–31.08.2016   
University of Tartu, Faculty of Science and Technology, Institute of Chemistry, Research Fellow in Analytical and Physical Chemistry (1,00)
01.09.2014–31.12.2015   
University of Tartu, Faculty of Science and Technology (old), Institute of Chemistry, Tartu University, Research Fellow (1,00)
01.09.2011–31.08.2014   
University of Tartu, Faculty of Science and Technology (old), Institute of Chemistry, Tartu University, Research Fellow in Analytical and Physical Chemistry (1,00)
01.09.2008–31.08.2011   
University of Tartu, Faculty of Science and Technology (old), Institute of Chemistry, Tartu University, Research Fellow in Analytical and Physical Chemistry (1,00)
01.01.2008–31.08.2008   
University of Tartu, Faculty of Science and Technology (old), Institute of Chemistry, Tartu University, Research Fellow (1,00)
01.08.2007–31.12.2007   
University of Tartu, Faculty of Science and Technology (old), Institute of Chemistry, Tartu University, Research Fellow (1,00)
01.09.2005–31.07.2007   
University of Tartu, Faculty of Physics and Chemistry, Institute of Chemical Physics, Research Fellow (1,00)
01.06.2005–31.08.2005   
University of Tartu, Faculty of Physics and Chemistry, Institute of Chemical Physics, Research Fellow extraordinarius (1,00)
2005–2005   
University of Tartu, Faculty of Physics and Chemistry, Institute of Chemical Physics, Chair of Analytical Chemistry, füüsikalise ja analüütilise keemia erakorraline teadur (1,00)
01.01.2005–31.12.2007   
University of Tartu, Faculty of Physics and Chemistry, Institute of Chemical Physics, Chair of Analytical Chemistry; Researcher (1.00)
01.06.2002–31.05.2005   
University of Tartu, Faculty of Physics and Chemistry, Institute of Chemical Physics, Research Fellow (1,00)
01.01.1993–31.12.2005   
University of Tartu, Faculty of Physics and Chemistry, Institute of Chemical Physics; Researcher
01.01.1990–31.12.1993   
University of Tartu, Faculty of Physics and Chemistry, Laboratory of Kinetics and Catalysis; Researcher
01.01.1976–31.12.1990   
University of Tartu, Faculty of Physics and Chemistry, Department of Organic Chemistry; Research associate of contractual works
01.01.1974–31.12.1976   
Polytechnical Institute of Tallinn, Laboratory of Sanitary Engineering; Senior engineer
 
 
Education
2003–2003   
Doctor of Philosophy degree in analytical and physical chemistry
2002–2003   
University of Tartu, Faculty of Physics and Chemistry, Department of Chemistry; PhD. Student
1997–1997   
University of Tartu, Faculty of Physics and Chemistry, Department of Chemistry; MSc. Student
1997–1997   
Magister of Science in physical and analytical chemistry
1974–1974   
Bachelor of Science in chemistry (organic chemistry)
1969–1974   
University of Tartu, Faculty of Physics and Chemistry, Department of Chemistry; Student
 
 
R&D related managerial and administrative work
-

Qualifications

Academic degrees
Mare Piirsalu, Doctor's Degree, 2003, (sup) Ilmar Koppel; Vilve Nummert, Substituent,temperature and solvent effects on the alkaline hydrolysis of substituted phenyl and alkyl esters of benzoic acid, University of Tartu, Faculty of Physics and Chemistry.
Mare Piirsalu, Research Master's Degree, 1997, (sup) Vilve Nummert, Alküülbensoaatide ja asendatud fenüülbensoaatide leeliselise hüdrolüüsi kineetika uurimine (Investigation of Kinetics of Alkaline Hydrolysis of Alkyl Benzoates and Substituted Phenyl Benzoates), University of Tartu, Faculty of Physics and Chemistry.
 
 
Fields of research
ETIS CLASSIFICATION: 4. Natural Sciences and Engineering; 4.11. Chemistry and Chemical Technology
 
 

Projects in progress

Completed projects

Publications

Category
Year
Publication
 
1.1.
2018
Nummert, Vilve; Piirsalu, Mare; Toom, Lauri; Kesvatera Tõnu; Leito, Ivo; Koppel, Ilmar A. (2018).

Effect of charged and ortho substituents on 17O NMR chemical shifts of substituted phenyl tosylates in DMSO

. Journal of Physical Organic Chemistry, 31, 1.10.1002/poc.3870.
1.1.
2018
Kütt, Agnes; Selberg, Sigrid; Kaljurand, Ivari; Tshepelevitsh, Sofja; Heering, Agnes; Darnell, Astrid; Kaupmees, Karl; Piirsalu, Mare; Leito, Ivo (2018). pKa values in organic chemistry – Making maximum use of the available data. Tetrahedron Letters, 59 (42), 3738−3748.10.1016/j.tetlet.2018.08.054.
1.1.
2017
Nummert, V.; Piirsalu, M.; Vahur, S.; Toom, L.; Leito, I.; Koppel, I.A. (2017). Effects of neutral and charged substituents on the infrared carbonyl stretching frequencies in phenyl and alkyl benzoates in DMSO. Journal of Physical Organic Chemistry, 30 (3), e3608 .10.1002/poc.3608.
1.1.
2013
Nummert, V.; Piirsalu, M.; Koppel, I.A. (2013). Prediction of ortho substituent effect in alkaline hydrolysis of phenyl esters of substituted benzoic acids in aqueous acetonitrile. Central European Journal of Chemistry, 11 (12), 1964−1975.10.2478/s11532-013-0321-5.
1.1.
2013
Nummert, V.; Piirsalu, M.; Koppel, I.A. (2013). Prediction of ortho substituent effect in alkaline hydrolysis of substituted phenyl benzoates in aqueous acetonitrile. Journal of Physical Organic Chemistry, 26 (4), 352−359.10.1002/poc.3096.
1.1.
2012
Nummert, V.; Mäemets, V.; Piirsalu, M.; Koppel, I.A. (2012). 17O NMR studies of ortho-substituents in substituted phenyl tosylates. Magnetic Resonance in Chemistry, 50 (10), 696−704.10.1002/mrc.3864.
1.1.
2011
Nummert, V.; Mäemets, V.; Piirsalu, M.; Vahur, S.; Koppel, I.A. (2011). 17O NMR study of ortho and alkyl substituent effects in substituted phenyl and alkyl esters of benzoic acids. Collection of Czechoslovak Chemical Communications, 12 (76), 1737−1763.10.1135/cccc2011100.
1.1.
2011
Nummert, V.;Maemets, V.;Piirsalu, M.;Koppel, I.A. (2011). Influence of ortho substituentson 17O NMR chemical shifts in phenyl esters of substituted benzoic acids. Journal of Physical Organic Chemistry, 24 (7), 539−552.10.1002/poc.1784.
5.2.
2011
Nummert, V.; Piirsalu, M.; Mäemets, V.; Koppel, I.A. (2011). Orto-substituentide mõju asendatud fenüülbensoaatide 17O TMR keemilistele nihetele. XXXII Eesti Keemiapäevad Teaduskonverentsi Teesid: XXXII Eesti Keemiapäevad;Tartu; 14-16 Aprill,2011. Tartu: Tartu Ülikooli Kirjastus, 65−65.
1.1.
2010
Nummert, V.; Piirsalu, M.; Koppel, I.A. (2010). Influence of solvent on the ortho substituent effect in the alkaline hydrolysis of phenyl esters of substituted benzoic acids. Journal of Physical Organic Chemistry, 23 (6), 497−504.10.1002/poc.1628.
1.1.
2009
Nummert, V.; Piirsalu, M.; Mäemets, V.; Vahur, S.; Koppel, I. (2009). Effect of ortho substituents on carbonyl carbon C-13 NMR chemical shifts in substituted phenyl benzoates. Journal of Physical Organic Chemistry, 22 (12), 1155−1165. DOI: 10.1002/poc.1569.
1.1.
2009
Nummert, V.; Piirsalu, M.; Vahur, S.; Travnikova, O.; Koppel, I. A. (2009). Kinetic study of hydrolysis of benzoates. part xxvii. ortho substituent effect in alkaline hydrolysis of phenyl esters of substituted benzoic acids in aqueous Bu4NBr. Collection of Czechoslovak Chemical Communications, 74 (1), 29−42. DOI: 10.1135/cccc2008019.
1.1.
2007
Nummert, V.;Piirsalu, M.;Koppel, I.A. (2007). Variation of the temperature-depenent substituent effects with solvent in alkaline hydrolysis of substituted phenyl and alkyl benzoates and phenyl tosylates. Journal of Physical Organic Chemistry, 20, 778−790.
1.1.
2006
Nummert, V.; Travnikova, O.; Vahur, S.; Leito, I.; Piirsalu, M.; Mäemets, V.; Koppel, I.; Koppel, I.A. (2006). Influence of Substituents on the Infrared Stretching Frequencies of Carbonyl Group in Esters of Benzoic Acid. Journal of Physical Organic Chemistry, 19 (10), 654−663. DOI: 10.1002/poc.1112.
1.1.
2006
Nummert , V.; Piirsalu , M.; Koppel , I.A. (2006). Kinetic study of hydrolysis of benzoates. Part XXVI. Variation of the substituent effect with solvent in alkaline hydrolysis of substituted alkyl benzoates. Collection of Czechoslovak Chemical Communications, 71, 1557−1570.
1.1.
2006
Nummert, V.; Piirsalu, M.; Maemets, V.; Koppel, I. (2006). Kinetic study of hydrolysis of benzoates. Part XXV. Ortho substituent effect in alkaline hydrolysis of phenyl esters of substituted benzoic acids in water. Collection of Czechoslovak Chemical Communications, 71 (1), 107−128.
1.1.
2005
Nummert, V.; Piirsalu, M.; Lepp, M.; Maemets, V.; Koppel, I. (2005). Kinetic study of alkaline hydrolysis of substituted phenyl tosylates. XXII. Variation of ortho substituent effect with solvent. Collection of Czechoslovak Chemical Communications, 70 (2), 198−222.
1.1.
2005
Nummert, V.; Piirsalu, M.; Maemets, V.; Koppel, I. (2005). Kinetic study of hydrolysis of benzoates. Part XXIV - Variation of the ortho substituent effect with solvent in the alkaline hydrolysis of substituted phenyl benzoates. Journal of Physical Organic Chemistry, 18 (11), 1138−1144.
1.1.
2002
Nummert, V.; Piirsalu, M. (2002). Kinetic study of hydrolysis of benzoates. Part XXIII - Influence of the substituent and temperature on the kinetics of the alkaline hydrolysis of alkyl benzoates in aqueous 2.25 M Bu4NBr and 80% DMSO. Journal of Physical Organic Chemistry, 15 (6), 353−361.
1.1.
2002
Nummert, V.; Piirsalu, M. (2002). Separation of ortho inductive, resonance and steric terms in alkaline hydrolysis of substituted phenyl benzoates and phenyl tosylates. Collection of Czechoslovak Chemical Communications, 67 (12), 1833−1857.
1.1.
2000
Nummert, V.; Piirsalu, M. (2000). Kinetic study of hydrolysis of benzoates. Part XXII. Variation of the ortho inductive, resonance and steric terms with temperature in the alkaline hydrolysis of substituted phenyl benzoates in aqueous 2.25 M Bu4NBr. Journal of the Chemical Society-Perkin Transactions 2, 3, 583−594.
1.2.
1997
Nummert, V.; Piirsalu, M. (1997). Kinetic Study of Hydrolysis of Benzoates. XXI. Influence of Temperature on Ortho Effect for 80 % Aqueous Dimethyl Sulfoxide Solution. Organic Reactivity, 31, 101−109.
1.2.
1996
Nummert, V.; Piirsalu, M. (1996). Kinetic Study of Hydrolysis of Benzoates. XX. Results of Kinetic Measurements of Alkaline Hydrolysis of Substituted Phenyl Benzoates in 80 % Aqueous Dimethyl Sulfoxide at Various Temperatures. Organic Reactivity, 30, 95−102.
1.2.
1996
Nummert, V.; Piirsalu, M.; Palm, V. (1996). Kinetic Study of Hydrolysis of Benzoates. XIX. Influence of Temperature on Ortho Effect for Water Solution. Isokinetic Dependence in the Case of Additional Ortho Induction Effect. Organic Reactivity, 30, 85−94.
1.2.
1995
Nummert, V.; Piirsalu, M. (1995). Kinetic Study of Hydrolysis of Benzoates. XVIII. Results of Kinetic Measurements of Alkaline Hydrolysis of Substituted Phenyl Benzoates in Water at Various Temperatures. Organic Reactivity, 29, 109−115.
1.2.
1993
Nummert, V.; Piirsalu, M.; Palm, V. (1993). Kinetic Study of Alkaline Hydrolysis of Substituted Phenyl Tosylates. XXI. Influence of Solvent on Ortho Effect. Organic Reactivity, 28, 82−87.
1.1.
1990
Nummert, VM.; Piirsalu, MV.; Palm, VA. (1990). Kinetic-study of alkaline-hydrolysis of substituted phenyl tosylates. 18. Results of kinetic measurements of o-substituted tosylates in 80-percent aqueous dimethylsulfoxide. Organic Reactivity, 27, 99−127.
1.1.
1990
Nummert, VM.; Piirsalu, MV. (1990). Kinetic-study of alkaline-hydrolysis of substituted phenyl tosylates. 19. Discussion of results of kinetic measurements for o-substituted tosylates in 80-percent aqueous dimethylsulfoxide. Organic Reactivity, 27, 217−240.
1.1.
1986
Nummert, V.; Ojassalu, K.; Piirsalu, M. (1986). Kinetic-study of alkaline-hydrolysis of substituted phenyl tosylates. 15. Hydrolysis of meta-substituted and para-substituted tosylates in concentrated aqueous n-bu4nbr solutions. Organic Reactivity, 23 (1), 83−95.
1.1.
1984
Nummert, V.; Parismaa, R.; Piirsalu, M. (1984). Kinetic study of benzoate hydrolysis. 16. Alkaline-hydrolysis of m- and p-substituted benzoates in concentrated aqueous n-bu4nbr and et4nbr salt solutions. Organic Reactivity, 21 (1), 83−97.
1.1.
1982
Nummert, V.; Piirsalu, M. (1982). Kinetic-study of alkaline-hydrolysis of substituted phenyl tosylates. 12. Hydrolysis of tosylates with electroneutral substituents in the presence of nacl and naclo4. Organic Reactivity, 19 (1), 67−81.
1.1.
1982
Nummert, V.; Piirsalu, M.; Pussa, T.; Linntam, A. (1982). Kinetic-study of hydrolysis of benzoates. 15. Alkaline-hydrolysis of ortho-oh-phenyl benzoate. Organic Reactivity, 19 (1), 82−101.
1.1.
1981
Nummert, V.; Eek, M.; Piirsalu, M. (1981). Kinetic-study of hydrolysis of benzoates. 14. Alkaline-hydrolysis in 80-percent aqueous dimethylsulfoxide. Organic Reactivity, 18 (3), 363−374.
1.1.
1979
Nummert, V.; Piirsalu, M. (1979). Kinetic-study of hydrolysis of benzoates. 13. Alkaline-hydrolysis of n(ch3)+3 substituted alkyl benzoates in the presence of NaClO4 and NaCl. Organic Reactivity, 16 (2), 251−260.
1.1.
1978
Nummert, V.; Piirsalu, M.; Alakivi, I. (1978). Kinetic study of alkaline-hydrolysis of substituted phenyl tosylates. 11. Hydrolysis in presence of naclo4(i). Organic Reactivity, 15 (1), 133−143.
1.1.
1978
Nummert, V.; Piirsalu, M. (1978). Study of hydrolysis kinetics of benzoates. 12. Alkaline-hydrolysis of alkyl benzoates in presence of naclo4 and nacl(i). Organic Reactivity, 15 (2), 240−257.
1.1.
1977
Nummert, V.; Piirsalu, M. (1977). Investigation of kinetics of hydrolysis of benzoates. 11. Alkaline-hydrolysis of substituted phenyl benzoates in presence of naclo4 (ii). Organic Reactivity, 14 (2), 263−279.
1.2.
1975
Nummert, V.M.; Piirsalu, M.V. (1975). Investigation of Kinetics of Hydrolysis of Benzoates. VIII. Acidic Hydrolysis of o-Substituted Phenyl Benzoates in Water at Various Temperatures. Reaktsionnaya Sposobnost Organicheskikh Soedinenii, 11, 921−932.
1.2.
1975
Nummert, V.M.; Piirsalu, M.V. (1975). Investigation of Kinetics of Hydrolysis of Benzoates. VI. Alkaline Hydrolysis of o-Substituted Phenyl Benzoates at Various Temperatures in Water. Reaktsionnaya Sposobnost Organicheskikh Soedinenii, 11, 899−910.
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