PROCESS FOR PREPARATION OF N-(2-AMINO-3,5-DIBROMOBENZOYL)-N'-(ALKANSULFONYL)HYDRAZIDE

摘要

The present invention relates to a method for preparing N- (2-amino-3,5-dibromobenzoyl) -N '-(alkanesulfonyl) hydrazide, and more particularly, lower alcohol, water or a mixed solvent thereof. The present invention relates to a method for preparing a target compound having improved purity and yield by reacting benzoylhydrazide with alkanesulfonyl chloride at room temperature using dimethylaminopyridine as a catalyst.