METHOD FOR THE PRODUCTION OF SULPHAMIC ACID HALOGENIDES

摘要

The invention relates to a method for the production of sulphamic acid halogenides of primary or secondary amines, comprising the following steps: i) reaction of a primary or secondary amine A1 with at least equimolar amounts of SO3 or an S03 source in the presence of at least equimolar amounts of a tertiary amine A2, respectively in relation to amine A1, and ii) reaction of the reaction mixture obtained in step i) with at least the stochiometrically required amount of phosphorus halogenide. The invention also relates to a method for the production of sulphamic acid diamides, comprising the production of sulphamic acid halogenides by carrying out steps i) and ii) an d by subsequently reacting the sulphamic acid halogenides thus obtained with ammonia.The invention further relates to the use of said method in the production of herbicidal active ingredients with a sulphodiamide structure. The invention also relates to novel sulphamic acid chlorides.