Hypervalent iodine(V) mediated mild and convenient synthesis of substituted 2-amino-1,3,4-oxadiazoles
作者:Girish Prabhu、V.V. Sureshbabu
DOI:10.1016/j.tetlet.2012.05.154
日期:2012.8
A simple protocol for the synthesis of 2-amino-1,3,4-oxadiazoles starting from the corresponding acylhydrazides by cyclodesulfurization of intermediate acylthiosemicarbazides mediated by o-iodoxybenzoic acid in good yields has been described. The protocol is mild with wide substrate scope, and thus a range of 2-amino-1,3,4-oxadiazoles have been prepared.
已经描述了一种简单的方案,该方案通过由邻碘代碘苯甲酸介导的中间体酰基硫代氨基脲在高产率下进行环脱硫,从相应的酰肼开始合成2-氨基-1,3,4-恶二唑。该方案温和,底物范围广,因此已制备了一系列的2-氨基-1,3,4-恶二唑。