The New Synthesis of Azo Urea from Substituted Semicarbazide

摘要

Using N-bromosuccinimide and pridine as the 0xidation s}-stem to dehydrogenale anly substituted semicarbazide to form azo compounds is described for the firs1 time in this paper Nine azo conlpounds have been prepared in excellent lield under mild condition This method onle needs simple instrument and short reaction