Process for the preparation of O-substituted N-hydroxy-sulphamic acid halides

摘要

1. A process for the preparation of an O-substituted N-hydroxy-sulfamic acid halide of the formula see diagramm : EP0006502,P6,F3 where R is an aliphatic or cycloaliphatic radical and X is halogen, by reacting a sulfamic acid with an acid halide, characterized in that a sulfamic acid of the formula see diagramm : EP0006502,P6,F4 where R has the above meaning, or a metal salt thereof, is reacted with an acid halide of sulfurous acid, phosphoric acid, phosphorous acid, carbonic acid or oxalic acid, using from 0.5 to 1 mole of acid halide per mole of starting material II.