Bis(perfluorosulfonyl)methane salts, and a process for preparing same
AssigneesCentre National De La Recherche Scientifique, Hydro-Quebec
InventorsMichel Armand, Djamila Benrabah, Jean-Yves Sanchez
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Abstract
Bis(perfluorosulphonyl)methanes, process for preparing same and uses thereof. The compounds of the invention are based on the formula (1/nM)+[(R.sub.F SO.sub.2).sub.2 CY].sup.- in which Y denotes an electron-attracting group chosen from --C.dbd.N and RZ groupings in which Z denotes a carbonyl grouping, sulphonyl grouping or a phosphonyl grouping and R denotes an organic monovalent grouping, M denotes a metal having valency n or an organic group capable of existing in the cationic form, R.sub.F denotes a perfluoroalkyl or perfluoroaryl grouping. Said compounds are especially useful in the production of electrochemical devices.
Claims22
A process for the preparation of a compound of the formula
- [(R.sub.F SO.sub.2).sub.2 C(Y)].sub.n.sup.- M.sup.n+
- wherein Y is --C.tbd.N or RZ-- where Z is carbonyl, sulfonyl or phosphoryl and R is a monovalent organic radical;
- M is a metal or an organic radical;
- n is the valency of M;
- and
- R.sub.F is perfluoroalkyl or perfluoroaryl, comprising:
- i) reacting a compound
- [(R.sub.F SO.sub.2).sub.2 CH].sub.n.sup.- M'.sup.n+
- wherein M'.sup.n+ is a metal or an organic radical, with a compound YX,
- where X is a halogen or a pseudohalide when Y is RZ--, and X is a halogen when Y is --CN;
- in the presence of a nucleophilic aprotic base.
A compound of the formula
- [(R.sub.F SO.sub.2).sub.2 C(Y)].sub.n.sup.- M.sup.n+
- wherein Y is --C.tbd.N or RZ-- where Z is carbonyl or phosphoryl and R is a monovalent organic radical;
- M is a metal;
- n is the valency of M;
- and
- R.sub.F is perfluoroalkyl or perfluoroaryl.
A compound of the formula
- [(R.sub.F SO.sub.2).sub.2 C(Y).sub.n.sup.- M.sup.n+
- wherein Y is --C.tbd.N or RZ-- where Z is carbonyl, sulfonyl or phosphoryl and R is a monovalent organic radical;
- M is an organic radical;
- n is the valency of M;
- and
- R.sub.F is perfluoroalkyl or perfluoroaryl.
A compound of the formula
- [(R.sub.F SO.sub.2).sub.2 C(Y).sub.n.sup.- M.sup.n+
- wherein Y is --C.tbd.N or RZ-- where Z is carbonyl, sulfonyl or phosphoryl and R is a monovalent organic radical having more than 4 carbon atoms;
- M is an alkaline-earth metal or a transition metal;
- n is the valency of M;
- and
- R.sub.F is perfluoroalkyl or perfluoroaryl.
Dependencies are inferred from the claim text.