Synthesis of N-aryl substituted 4H-1,4-benzothiazine 1,1-dioxide 2-carboxylic acid-esters

被引：4
|
作者：
Lopez, SE
Charris, J
Urdaneta, N
Lobo, G
机构：
[1] Univ Simon Bolivar, Dept Quim, Lab Quim Organ 210, Caracas 1080A, Venezuela
[2] Cent Univ Venezuela, Fac Farm, Lab Sintesis Organ, Caracas 1051, Venezuela
来源：
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 1998年 / 143卷
关键词：
4H-1,4-benzothiazine-1,1-dioxide; N-aryl-phenylsulfonylacrylates; cyclization reaction;
D O I：
10.1080/10426509808045484
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A group of N-aryl substituted 14-benzothiazine-1,1-dioxide-2 carboxylic acid esters is reported. This is the first example of N-aryl-derivatives of the 4H-1,4-benzothiazine nucleus; the key step is the cyclization of N-aryl-phenylsulfonyl-acrylates 4-8 using potassium carbonate in acetonitrile/18-crown-6-ether to the corresponding title compounds in moderate yields.
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页码：53 / 61
页数：9
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