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.
披露了一种改进的工艺,用于在溶剂和碱的存在下对
碳酸酯进行亚磺酰化,其中在
碳酸酯和亚
磺酰卤化物的反应中,在较低烷基胺和
二氧化硫的络合物的催化量存在下进行。公开了几种制备和利用该络合物进行反应的方法,并给出了示例。