An improved process is disclosed for sulfenylating carbamates in the presence of a solvent and acid acceptor, in which the reaction between a carbamate and a sulfenyl halide is conducted in the presence of a catalytic amount of a complex of a lower alkylamine and sulfur dioxide. Several methods for preparing and utilizing the complex in the reaction are disclosed and exemplified.
本发明公开了一种在溶剂和酸接受体存在下对
氨基甲酸酯进行亚
硫酰化的改进工艺,其中
氨基甲酸酯和亚磺
酰卤之间的反应是在催化量的低级烷基胺和
二氧化硫的络合物存在下进行的。本文公开并举例说明了在反应中制备和利用络合物的几种方法。