A general method for one-potsynthesis of thioamides without transition metals or external oxidants is developed through a three-component reaction involving chlorohydrocarbon, amide and elementalsulfur. Both alkyl and aryl thioamides could be obtained in moderate to excellent yields through this protocol. A high tolerance regarding various substituents on chlorohydrocarbon or amide was justified
General Construction of Thioamides under Mild Conditions: A Stepwise Proton Transfer Process Mediated by EDTA
作者:Hao Jin、Xin Ge、Shaodong Zhou
DOI:10.1002/ejoc.202101013
日期:2021.11.25
of experiments and quantum chemical calculations. Ester, amide, and elemental sulfur are employed as the starting materials and ethylene diamine tetraacetic acid (EDTA) serves as the catalyst to facilitate the benign reaction. The catalytic role of EDTA is attributed to a stepwise proton transfer process in which EDTA transports a proton from the benzyl carbon to a sulfur atom.