Selective transformations of 2-(p-toluenesulfonyl)-N-tosylhydrazones to substituted 1,2,3-thiadiazoles
作者:Yijiao Feng、Jing He、Weiwei Li、Zhen Yang、Yueting Wei、Ping Liu、Jixing Zhao、Chengzhi Gu、Wenli Wang
DOI:10.1016/j.tet.2020.131803
日期:2021.1
Selectivetransformations of 2-(p-toluenesulfonyl)-N-tosylhydrazones with different sulfur sources have been established. A series of 4-aryl-1,2,3-thiadiazoles and novel 4-aryl-5-tosyl-1,2,3-thiadiazoles were selectively constructed by the adjustment of reaction conditions. These protocols feature short reaction time, good compatibility of functional group, easily available materials, and good selectivity