Reactions of methyl E,Z22benzoyl2ethoxycarbonyl1ethenylamino3dimethylaminopropenoate with heteroarylhydrazines. 22Benzoyl2ethoxycarbonyl1ethenylamino3heteroarylhydrazonopropanoates and 1heteroaryl4ethoxycarbonyl3phenylpyrazoles

Autor: Strah, Sonja, Stanovnik, Branko
Zdroj: Journal of Heterocyclic Chemistry; September 1997, Vol. 34 Issue: 5 p1629-1631, 3p
Abstrakt: In the reaction of methyl E,Z22benzoyl2ethoxycarbonyl1ethenylamino3dimethylaminopropenoate 1 with heteroarylhydrazines 2in ethanol in the presence of catalytic amounts of hydrochloric acid two types of products were formed: methyl 22benzoyl2ethoxycarbonyl1ethenylamino3heteroarylhydrazonopropanoates 4in 7386 yield and 1heteroaryl4ethoxycarbony3phenylpyrazoles 5in 516 yield.
Databáze: Supplemental Index