Acid-base properties of 3-benzazolylcoumarins and their imino analogs

被引：0

作者：

Sizova Z.A. ^{[1
]}

Karasev A.A. ^{[1
]}

Lukatskaya L.L. ^{[1
]}

Rubtsov M.I. ^{[1
]}

Doroshenko A.O. ^{[1
]}

机构：

[1] Scientific-Research Institute of Chemistry, V. N. Karazin Kharkiv National University, 61077 Kharkiv

来源：

Theoretical and Experimental Chemistry | 2002年 / 38卷 / 3期

关键词：

Coumarins; Hydrolysis; Iminochromenes; Protolytic equilibria; Tautomerism;

D O I：

10.1023/A:1019652918510

中图分类号：

学科分类号：

摘要：

The acid-base equilibria of 3-(N-methyl-2-benzimidazolyl)coumarins and imino chromenes were studied in aqueous ethanol. The major reason for the difference in their proton-acceptor capacity relative to their nonmethylated analogs lies in a loss of planarity of these molecules. The tautomerism of 7-hydroxy-2-iminochromene is discussed. ©2002 Plenum Publishing Corporation.

引用

页码：168 / 172

页数：4

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