Some new views on the tautomerisation mechanism

被引：0
|
作者：
Kereselidze, J.A. [1 ]
Zarqua, T.Sh. [2 ]
Kikalishvili, T.J. [1 ]
Churgulia, E.J. [1 ]
Makaridze, M.C. [1 ]
机构：
[1] Department of Chemistry, I Javakhishvili Tbilisi State University, prosp. I Chavchavadze 1, 380028 Tbilisi, Georgia
[2] Sukhumi Branch of the Tbilisi State University, ul. Jigia 9, 380060 Tbilisi, Georgia
来源：
Russian Chemical Reviews | 2002年 / 71卷 / 12期
关键词：
Carbonyl compounds - Solvents;
D O I：
10.1070/RC2002v071n12ABEH000727
中图分类号：
学科分类号：
摘要：
Published data on the prototropic tautomerism of some carbonyl and nitrogen-containing acyclic and heterocyclic compounds are systematised. Mechanisms of intramolecular and intermolecular proton transfer in tautomerisation reactions are considered. On the basis of the results of semiempirical and ab initio quantum-chemical calculations, preference is given to an intermolecular collective (dimeric, trimeric, tetrameric or oligomeric) mechanism. A new approach to the description of the solvent effect on the prototropic tautomeric equilibrium is proposed. The bibliography includes 107 references. © 2002 Russian Academy of Sciences and Turpion Ltd.
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页码：993 / 1003
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