A convenient one-pot procedure is reported for preparing N, N-disubstituted carbamoyl chlorides by using chlorocarbonylsulfenyl chloride as a carbonylating agent. It comprises the reaction of secondary amines with chlorocarbonylsulfenyl chloride in the presence of an aprotic organic solvent to produce the corresponding N, N-disubstituted carbamoyl halides. Insertion of the carbonyl group without using phosgene is the novelty of this method.
