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1. (WO1998052886) METHOD FOR THE SYNTHESIS OF PERFLUOROSULPHONAMIDES, PERFLUOROSULPHONAMIDES AND THEIR SALTS, AND A SULPHONATION REAGENT

Pub. No.:    WO/1998/052886    International Application No.:    PCT/FR1998/000973
Publication Date: Fri Nov 27 00:59:59 CET 1998 International Filing Date: Sat May 16 01:59:59 CEST 1998
IPC: C07C 303/38
C07C 311/48
Applicants: RHODIA CHIMIE
PEVERE, Virginie
MARX, Emmanuel
GILBERT, Laurent
Inventors: PEVERE, Virginie
MARX, Emmanuel
GILBERT, Laurent
Title: METHOD FOR THE SYNTHESIS OF PERFLUOROSULPHONAMIDES, PERFLUOROSULPHONAMIDES AND THEIR SALTS, AND A SULPHONATION REAGENT
Abstract:
The invention concerns a method of sulphonation characterised in that it consists in contacting a nucleophile whose nucleophilic atom is a nitrogen atom with a reagent comprising by successive or simultaneous addition: a heavy sulphonyl halide (i.e. whose atomic number is not less than that of chlorine), advantageously suphonyl chloride; and an organic base both not capable of alkylation and lipid soluble; and the organic part of said sulphonyl is perfluorinated on the carbon carried by the sulphur. The invention is applicable to organic synthesis.