Sustainable Three-Component Synthesis of Isothioureas from Isocyanides, Thiosulfonates, and Amines
作者:Pieter Mampuys、Yanping Zhu、Tjøstil Vlaar、Eelco Ruijter、Romano V. A. Orru、Bert U. W. Maes
DOI:10.1002/anie.201406717
日期:2014.11.17
Multiple applications of isothioureas as fine chemicals (or their precursors) are known, but a general sustainable method for their synthesis was hitherto unavailable. We report a novel general approach towards S‐alkyl and S‐aryl isothioureas through a copper(I)‐catalyzed three‐component reaction between amines, isocyanides, and thiosulfonates. The formal synthesis of a superpotent sweetener further