Stereoselective synthesis of alkyl Z-2-(2-amino-4-oxo-1,3-thiazol-5(4H-yliden)acetates in solventless conditions

被引：6

作者：

Ramazani, A

Kazemizadeh, AR

Ganjeie, B

Ahmadi, E

机构：

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

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

来源：

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 2005年 / 180卷 / 11期

关键词：

1,3-thiazol; acetylenic ester; Michael addition; stereoselectivity; thiourea; X-ray single crystal structure analysis;

D O I：

10.1080/104265090930290

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Tiourea reacts with dialkyl acetylenedicarboxylates in solventless conditions to form 1:1 adducts, which undergo a cyclization reaction to produce alkyl Z-2-(2-amino-4-oxo-1,3-thiazol-5(4H)-yliden)acetates in fairly good yields. The stereochemistry of the ethyl Z-2-(2-amino-4-oxo-1,3-thiazol-5(4H)-yliden)acetate was established by the use of X-ray single crystal structure analysis. The reaction is completely stereoselective.

引用

页码：2569 / 2572

页数：4

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