Synthesis and antimicrobial activity of new thiazole and thiadiazole derivatives <i>via</i> ethyl pyruvate
作者:Fatma M. Saleh、Abdou O. Abdelhamid、Hamdi M. Hassaneen
DOI:10.1080/17415993.2019.1694678
日期:2020.3.3
Reaction of ethyl 2-(2-((methylthio)carbonothioyl)hydrazono)propanoate (2) and ethyl 2-(2-carbamothioyl-hydrazono)propanoate (3) with hydrazonoyl halides 4 a-e afforded the corresponding thiadiazoles 5 a-e. Also, treatment of compound 2 with α-ketohydrazonoyl halides 12a-f in absolute ethanol and in the presence of triethylamine gave the corresponding thiadiazoles 13a-f; while reaction of ethyl 2-(2-ca