4-bromo-3-methyl-1-phenylpyrazole in heterocyclic synthesis: Unexpected polysubstituted pyrazole derivatives

被引：4
|
作者：
El-Rady, EA [1 ]
Abd El Latif, FM [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：
4-bromopyrazole; dipyrazolyly; fuoro[2,3-c]pyrazole and dipyrazolomethylidene;
D O I：
10.1002/jccs.200400119
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Unexpected 4,4'-dipyrazolomethylidene (7), 4-amino-3a-bromo-3-methyl-1-phenylpyrazolo[3,4-b]pyridin-6-thione (9), 4,4'-dipyrazolyl (18), ethyl 4-(3-methyl-1-phenylpyrazole-4-yl)fuoro[2,3-c]pyrazole-4-carboxylate (25), as well as the expected fuoro[2,3-c]pyrazole derivatives (15), (20) and (28) were isolated from a one-pot reaction of 4-bromo-3-methyl-1-phenylpyrazole (1) with some readily available reagents.
引用
收藏
页码：785 / 790
页数：6
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