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
Selective transformations 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
已经建立了具有不同硫源的2-(对甲苯磺酰基)-N-甲苯磺酰hydr的选择性转化。通过调节反应条件,选择性地构建了一系列的4-芳基-1,2,3-噻二唑和新型的4-芳基-5-甲苯基-1,2,3-噻二唑。这些协议的特点是反应时间短,官能团的相容性好,易于获得的材料和选择性好。