A new and high efficient one-pot stereoselective synthesis of alkyl E-2-(2-imino-4-oxo-1,3-thiazolan-5-yliden) acetates

被引：0

作者：

Ramazani, A ^{[1
]}

Hossaini-Alemi, SA ^{[1
]}

机构：

[1] Univ Zanjan, Dept Chem, Zanjan, Iran

来源：

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 2001年 / 176卷

关键词：

acetylenic esters; Michael addition; stereoselective; thioacetamide; thiourea;

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Thiourea reacts with dialkyl acetylenedicarboxylates in acetone to form 1:1 adducts, which undergo a cyclization reaction to produce alkyl E-2-(2-imino-4-oxo-1,3-thiazolan-5-yliden)acetates, in fairly high yields. Under the same conditions, thioacetamide reacts with dimethyl acetylenedicarboxylate to form dimethyl E-2-(ethanimidoylsulfanyl)-2-butenedioate. The products are stable crystaline solids whose structures are supported by IR, MS, (1) H NMR, C-13 NMR spectroscopy, and elemental analyses.

引用

页码：237 / 241

页数：5

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