RING-CHAIN TAUTOMERISM IN 1,3-THIAZOLIDINES

被引：73

作者：

FULOP, F ^{[1
]}

MATTINEN, J ^{[1
]}

PIHLAJA, K ^{[1
]}

机构：

[1] UNIV TURKU,DEPT CHEM,SF-20500 TURKU 50,FINLAND

来源：

TETRAHEDRON | 1990年 / 46卷 / 18期

关键词：

D O I：

10.1016/S0040-4020(01)96019-3

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

NMR spectroscopy was applied to study ring-chain tautomeric equilibria in several substituted 1,3-thiazolidines. The system highly prefers the ring form and only in the case of 2-(2'-hydroxy,5'-bromophenyl)-l,3-benzothiazo-line (2d) 1H and 13C NMR spectra revealed a detectable amount of the openchain tautomer. The relative stability of the 1,3-thiazolidine ring was estimated to be more than 104 times higher than that of the 1,3-oxazolidine ring. © 1990.

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页码：6545 / 6552

页数：8

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