Citation: Xiao Yang WANG, Yu Lu WANG, Jian Ping LI, Cai Lan WANG, Hong WANG. The New Synthesis of Azo Urea from Substituted Semicarbazide[J]. Chinese Chemical Letters, ;1997, 8(6): 473-474. shu

The New Synthesis of Azo Urea from Substituted Semicarbazide

Department of Chemistry, Henan Normal University, Xinxiang 453002

Received Date: 7 January 1997

Fund Project: This research was supported by a grant from National Natural Science Foundation of China.

Using N-bromosuccinimide and pyridine as the oxidation system to dehydrogenate aryl substituted semicarbazide to form azo compounds is described for the first time in this paper.Nine azo compounds have been prepared in excellent yield under mild condition.This method only needs simple instrument and short reaction time.
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