Phase-Transfer Catalyzed Mild Synthesis of 1,5-Diacyl Thiocarbohydrazides and Their Solventless Expeditious Transformation to 1,5-Diacyl Carbohydrazides
作者:Zheng Li、Yanlong Zhao、Jingya Yang
DOI:10.1080/10426500600867240
日期:2007.1.1
1,5-diacyl thiocarbohydrazides were efficiently synthesized by the reactions of thiocarbohydrazide with a variety of aroyl chlorides at r.t. using PEG-400 as a phase-transfer catalyst. Meanwhile, 1,5-diacyl thiocarbohydrazides were be expeditiously transformed into corresponding 1,5-diacyl carbohydrazides with periodic acid by r.t. grinding a under solventless condition. This protocol has advantages