An Efficient Synthesis of Sulfonylhydrazides and Sulfonylsemicarbazides by Utilizing Alumina as a Catalyst
作者:Javad Safaei-Ghomi
DOI:10.1002/jccs.200700220
日期:2007.12
Sulfonyl hydrazides and sulfonyl semicarbazides are readily prepared by the reacting of hydrazine derivatives with sulfonyl chlorides in the presence of basic alumina under solvent-free conditions. Reaction of a sulfonyl chloride with t-butylcarbazate, followed by hydrolysis provides the corresponding sulfonyl hydrazides in higher yield and shorter time than previously reported.
磺酰肼和磺酰氨基脲很容易通过肼衍生物与磺酰氯在碱性氧化铝存在下在无溶剂条件下反应制备。磺酰氯与碳酸叔丁酯反应,然后水解提供相应的磺酰肼,其产率比先前报道的更高,时间更短。