Molecular design of pyrazolo [3, 4-d] pyridazines

VS Matiichuk, MA Potopnyk, ND Obushak

文献索引：Matiichuk; Potopnyk; Obushak Russian Journal of Organic Chemistry, 2008 , vol. 44, # 9 p. 1352 - 1361

全文：HTML全文

被引用次数: 14

摘要

Abstract Reactions of arenediazonium chlorides with ethyl 2-methyl-and 2-chloro-4- oxobutanoates gave, respectively, ethyl 2-(arylhydrazono) propanoates and chloro (arylhydrazono) acetates. Ethyl 2-(arylhydrazono)-propanoates reacted with the Vilsmeier- Haak reagent to give ethyl 1-aryl-4-formyl-1 H-pyrazole-3-carboxylates. Ethyl 1-aryl-4-acetyl- 5-methyl-1 H-pyrazole-3-carboxylates were obtained by reaction of chloro (arylhydrazono) ...