Studies with polyfunctionally substituted heterocycles:: New synthesis of pyrido[5′,4′:2,3][1,3,4]oxadiazolo[3,2-a]pyridine; pyridazine; 1,3,4-oxadiazole; and Pyrazolo[1,5-a]pyrimidine derivatives

被引：8

作者：

Barsy, MA ^{[1
]}

Elmaghraby, MA ^{[1
]}

Ahmed, SM ^{[1
]}

机构：

[1] S Valley Univ, Dept Chem, Fac Sci, Aswan, Egypt

来源：

JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 1998年 / 45卷 / 05期

关键词：

pyrido[5 ',4 ': 2,3][1,3,4]oxadiazolo[3,2-a]pyridine; 1,3,4-oxadiazole;

D O I：

10.1002/jccs.199800099

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

Cyanoacetohydrazide 1a reacts with 2-arylhydrazoketons 2a,b and 3a,b in refluxing ethanol to yield pyrido[5',4':2,3][1,3,4]oxadiazolo[3,2-a]pyridine and pyridazine derivatives; in the absence of solvent pyrazolo[ 1,5-a]pyrimidine derivatives were obtained. The reaction of 2a,b and 3a,b with benzoylhydrazine afforded 1,3,4-oxadiazole and pyrazole derivatives.

引用

页码：655 / 658

页数：4