Processes for the preparation of halides of sulphamic acid, primary or secondary amines, diamidas sulfu00c8nico acid and compounds, and sulphamic acid chloride.

摘要

Process for the preparation of halides of sulphamic acid, primary or secondary amines, diamidas acid sulfu00c8nico and compounds ".The present invention relates to a process for the preparation of halides of sulphamic acid, primary or secondary amines.It comprises the following stages: (I) the reaction of a primary or secondary amine A1 at least quantities equimolares only ~ 3 ~ or a source of only ~ 3 ~.In the presence of at least one quantity equimolar a tertiary amine A2, based respectively on the amine A1And (II) reaction of the mixture of reaction obtained in stage (I) with at least an amount stoichiometrically required of a phosphorus halide.The invention also relates to a process for the preparation of sulfodiamidas,That includes the preparation of halides of sulphamic acid, through the implementation of the steps I) and II) and the reaction subsequ00b3ente of sulphamic acid halide obtained with ammonia.The invention also relates to the use of this process for the preparation of active substances herbicides with structure sulfodiamida. The invention relates also to new chlorides of sulphamic acid.