New synthesis of pyrazolo[3,4-b][1,4,5]benzothiadiazepine, pyrazolo[3,4-b][1,4,5]benzoxadiazepine, pyrazolo[3,4-b][1,4,5]benzotriazepine and pyrazolo[3,4-b]quinoxaline derivatives

被引：7
|
作者：
El-Rady, EA [1 ]
机构：
[1] S Valley Univ, Fac Sci, Dept Chem, Aswan, Egypt
来源：
JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 2004年 / 51卷 / 04期
关键词：
2-aminothiophenol; quinoxaline; dipyrazolyl;
D O I：
10.1002/jccs.200400129
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
New pyrazolo[3,4-b][1,4,5]benzothiadiazepine and its analogues 3 have been obtained by reaction of 4-nitrosopyrazoles 1 with 2-aminothiophenol 2a and its analogues 2b,c. Under fused conditions, dipyrazolyl derivatives 7a was obtained with a trace amount of quinoxaline 5a. On the other hand, 5b and 7b were obtained in equal amounts. A proposed pathway is presented.
引用
收藏
页码：859 / 862
页数：4
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