8H-ANHYDRO-4-HYDROXY-2-OXO-1,3-THIAZINIUM HYDROXIDES AS MESOIONIC 1,4-DIPOLES

被引：8

作者：

PADWA, A

COATS, SJ

HADJIARAPOGLOU, L

机构：

[1] Department of Chemistry, Emory University, Atlanta

来源：

HETEROCYCLES | 1994年 / 39卷 / 01期

关键词：

D O I：

10.3987/COM-93-S(B)16

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The previously unknown 8H-anhydro-4-hydroxy-2-oxo-1,3-thiazinium hydroxides (1) were prepared and their 1,4-dipolar cycloaddition behavior was examined. In most cases, elimination of the proton in the 8-position of the mesoionic ring was observed to occur unless extremely reactive dipolarophiles were used. The S,N-ketene acetals were converted to the corresponding alpha-diazo ketones for further study.

引用

页码：219 / 241

页数：23

共 75 条

[1] SYNTHESIS OF A DITHIA-18-CROWN-6-TETRACARBOXYLIC ACID [J].