SYNTHESIS OF 5,8-DICHLORO-3-METHYL-4H-1,4-BENZOTHIAZINES AND THEIR CONVERSION INTO SULFONES

被引：11
|
作者：
GUPTA, A [1 ]
SARASWAT, V [1 ]
GUPTA, SK [1 ]
GUPTA, R [1 ]
MUKHERJI, SK [1 ]
GUPTA, RR [1 ]
机构：
[1] UNIV RAJASTHAN,DEPT CHEM,JAIPUR 302004,RAJASTHAN,INDIA
来源：
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 1993年 / 85卷 / 1-4期
关键词：
4H-1,4-BENZOTHIAZINES; 1,4-BENZOTHIAZINE SULFONES; 3,6-DICHLORO-2-AMINOBENZENETHIOL; BETA-DIKETONES; BETA-KETOESTERS;
D O I：
10.1080/10426509308038187
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The present work consists of the one pot synthesis of 5,8-dichloro-3-methyl-4H-1,4-benzothiazines by the condensation and oxidative cyclization of 2-amino-3,6-dichlorobenzenethiol with beta-diketones/beta-ketoesters in dimethyl sulfoxide and oxidation behaviour of 4H-1,4-benzothiazines by 30% hydrogen peroxide in glacial acetic acid to 1,4-benzothiazine sulfones. The structure of all the newly synthesized compounds has been confirmed by elemental analysis and spectral studies.
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收藏
页码：101 / 106
页数：6
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