RING CHAIN TAUTOMERISM IN 1,3-THIAZOLIDINES

被引：0
|
作者：
FULOP, F
MATTINEN, J
PIHLAJA, K
机构：
来源：
MAGYAR KEMIAI FOLYOIRAT | 1990年 / 96卷 / 08期
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中图分类号：
O6 [化学];
学科分类号：
0703 ;
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)-1,3-benzothiazoline (2d) H-1 and C-13 NMR spectra revealed a detectable amount of the open-chain tautomer. The relative stability of the 1,3-thiazolidine ring was estimated to be more than 10(4) times higher than that of the 1,3-oxazolidine ring.
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页码：344 / 348
页数：5
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