Sonja Strah, B. Stanovnik
Sep 1, 1997
Citations
0
Influential Citations
7
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
In the reaction of methyl (E,Z)-2-(2-benzoyl-2-ethoxycarbonyl-1-ethenyl)amino-3-dimethylaminopro-penoate (1) with heteroarylhydrazines 2 in ethanol in the presence of catalytic amounts of hydrochloric acid two types of products were formed: methyl 2-(2-benzoyl-2-ethoxycarbonyl-1-ethenyl)amino-3-heteroaryl-hydrazonopropanoates 4 in 73-86% yield and 1-heteroaryl-4-ethoxycarbony-3-phenylpyrazoles 5 in 5-16% yield.