PROCESS FOR PREPARATION OF PERHALOALKYL-THIOETHERS

摘要

A process for the preparation of perhalogenoalkylthioethers in which there are brought into contact, optionally in a solvent… a reducing agent consisting of a metal chosen from among zinc, cadmium, aluminium and manganese together with sulphur dioxide, or consisting of an alkali metal dithionite or an alkali metal, alkaline earth metal or metal hydroxymethanesulphinate, or consisting of a formate anion and sulphur dioxide,… a disulphide and… a perfluoroalkyl halide.