Author Ilmar A. Koppel | Collection of Czechoslovak Chemical Communications

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Ilmar A. Koppel

Vilve Nummert, Vahur Mäemets, Mare Piirsalu, Signe Vahur and Ilmar A. Koppel*
¹⁷O NMR study of ortho and alkyl substituent effects in substituted phenyl and alkyl esters of benzoic acids
2011, Vol. 76, Issue 12, pp. 1737–1763 [Abstract]
Vilve Nummert, Mare Piirsalu, Signe Vahur, Oksana Travnikova and Ilmar A. Koppel*
Kinetic study of hydrolysis of benzoates. part xxvii. ortho substituent effect in alkaline hydrolysis of phenyl esters of substituted benzoic acids in aqueous Bu₄NBr
2009, Vol. 74, Issue 1, pp. 29–42 [Abstract]
Vilve Nummert, Mare Piirsalu and Ilmar A. Koppel*
Kinetic Study of Hydrolysis of Benzoates. Part XXVI. Variation of the Substituent Effect with Solvent in Alkaline Hydrolysis of Substituted Alkyl Benzoates
2006, Vol. 71, Issue 11-12, pp. 1557–1570 [Abstract]

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Vilve Nummert, Mare Piirsalu*, Vahur Mäemets and Ilmar Koppel
Kinetic Study of Hydrolysis of Benzoates. Part XXV. Ortho Substituent Effect in Alkaline Hydrolysis of Phenyl Esters of Substituted Benzoic Acids in Water
2006, Vol. 71, Issue 1, pp. 107–128 [Abstract]
Vilve Nummert, Mare Piirsalu*, Marika Lepp, Vahur Mäemets and Ilmar Koppel
Kinetic Study of Alkaline Hydrolysis of Substituted Phenyl Tosylates. XXII. Variation of Ortho Substituent Effect with Solvent
2005, Vol. 70, Issue 2, pp. 198–222 [Abstract]