C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 309/10 (2006.01) B01J 31/02 (2006.01) C07C 303/22 (2006.01) C07C 309/82 (2006.01) C07C 311/24 (2006.01) C11D 1/00 (2006.01) H01M 6/16 (2006.01)
Patent
CA 2046949
A process for preparing perfluoroalkoxysulphonic compounds having formula: R f ~ OC2F4 -SO2X)p (I) wherein R f represents a perfluoroalkyl or perfluoroethereal group, X represents F, OH or OM, in which M is an alkaline cation, alkaline-earth cation, or X represents NR1R2, in which R1 and R2, independently of each other, represent H or an alkyl group containing from 1 to 5 carbon atom and p is a number selected from 1 to 2, characterized in that the perfluoro vinyl sulphonyl fluoride of formula (II) CF2 = CF-SO2F is reacted with a hypofluorite of formula (III): R f (OF) r (III) wherein R f is the same as defined above, and r represents 1 or 2, optionally in an inert solvent, at a temperature approximately ranging from -140°C to +40°C, and that, if so desired, from the compound of formula (I) so obtained in which X=F, the corresponding derivatives, in which X has the other meanings defined above, are obtained by means of conventional techniques. A few subclasses of compounds (I) are new per se. The derivatives are utilized as polymerization catalysts, surfactants, electrolytes in electric generators.
Montanari Vittorio
Navarrini Walter
Staccione Anna Maria
Ausimont S.p.a.
Mccarthy Tetrault Llp
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