PRODUCTION OF N-(2-CHLOROETHYL)METHANESULFONAMIDE

PURPOSE:To provide a method for producing high-quality N-(2-chloroethyl) methanesulfonamide in good yield for a short time by reacting ethyleneimine with methanesulfonyl chloride as raw materials at a high temperature. CONSTITUTION:Ethylene dichloride is used as a reaction solvent and ethyleneimine is reacted with methanesulfonyl chloride at the boiling point of the reaction solution while feeding both to the reaction system. The ethylene dichloride is then recovered from the reaction solution by distillation and vacuum distillation is further carried out to afford N-(2-chloroethyl) methanesulfonamide in high yield and quality. The aforementioned method is an industrially extremely advantageous method because of its high productivity.