Synthesis of cephems by reaction of new 6H-1,3-thiazines with ketenes

被引：2

作者：

Friot, C ^{[1
]}

Reliquet, A ^{[1
]}

Meslin, JC ^{[1
]}

机构：

[1] Organ Synth Lab, CNRS, UMR 6513, F-44072 Nantes, France

来源：

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 1997年 / 131卷

关键词：

2-benzoyl-6H-l; 3-thiazines; 2-ethoxycarbonyl-6H-1,3-thiazines; ketenes; cephems;

D O I：

10.1080/10426509708031603

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis of new 6H-1,3-thiazines bearing a benzoyl or ethoxycarbonyl group at the 2 position is described, These compounds react with acids precursor of ketenes in the presence of mesyl chloride and triethylamine or with ketenes themselves giving rise to cephems in good yields under mild conditions.

引用

页码：147 / 160

页数：14

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