Synthesis of 5-substituted-3-phenacyloxime-1,2,4-oxadiazoles from acetylated or benzoylated benzoylthiacetamide with hydroxylamine hydrochloride
作者:G. Ronsisvalle、F. Guerrera、M.A. Siracusa
DOI:10.1016/s0040-4020(01)92460-3
日期:1981.1
Acetylated and benzoylated benzoylthiacetamide 1a,b reacts with hydroxylamine hydrochloride in refluxing ethanol to yield 3 - acetylamino - and 3 - benzoylamino - 5 - phenyl - isoxazoles 2a,b, while 3 -phenacyloxime - 5 - substituted - 1, 4a,b are formed in the presence of sodium acetate or in pyridine.