THE REACTIONS OF 3-DIAZOPYRAZOLO[3,4-B]PYRIDINE DERIVATIVES WITH REACTIVE METHYLENE-COMPOUNDS

被引：0

作者：

ELMOBAYED, M ^{[1
]}

ESSAWY, AN ^{[1
]}

ELBAHNASAWI, A ^{[1
]}

AMER, AM ^{[1
]}

机构：

[1] ZAGAZIG UNIV,FAC SCI,DEPT CHEM,ZAGAZIG,EGYPT

来源：

GAZZETTA CHIMICA ITALIANA | 1991年 / 121卷 / 04期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Diazotised 3,6-diamino-4-phenylpyrazolo[3,4-b]pyridine-5-carbonitrile, 2, reacted with active methylene reagents and with beta-naphthol to yield pyrido[3',2':4,5]pyrazolo[3,2-c]-1,2,4-triazine derivatives (4a-d) and a pyrido[3',2':4,5]pyrazolo[3,2-c]naphtho[2,1-e]-1,2,4-triazine derivative, 6, respectively. Compound 2 coupled with 3-methyl-5-pyrazolone and 1-phenyl-3-methyl-5-pyrazolone to yield the corresponding azo compounds (7a,b). Cyclisation of compound 7b yielded 8-chloro-3-methyl-1,6diphenylpyrido[3',2':4,5]dipyrazolo[3,2-c:3',4'-c]-1,2,4-triazine-7-carbonitrile, 9. Reaction of 2 with dimethyl acetylenedicarboxylate is also described.

引用

页码：209 / 212

页数：4

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