Studies on 3,5-Diamino Pyrazoles: Chemical Behavior of 4-Phenylazo-3,5-diaminopyrazoles

Autor: Mohamed Hilmy Elnagdi, E. M. Kandeel, Mohamed Rifaat Hamza Elmoghayar
Rok vydání: 1977
Předmět:
Zdroj: Zeitschrift für Naturforschung B. 32:307-310
ISSN: 1865-7117
0932-0776
DOI: 10.1515/znb-1977-0315
Popis: The behaviour of 3,5-diamino-4-phenylazopyrazole (1) toward isothiocyanates, acrylonitrile and ethyl ethoxymethylenecyanoacetate is investigated. An improved synthesis of 4-unsubstituted-3,5-diaminopyrazoles by an arylazo removal reaction is also reported.
Databáze: OpenAIRE