Bis(perfluorosulfonyl)methane salts, and a process for preparing same
First Claim
1. A process for the preparation of a compound of the formula
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
RF is perfluoroalkyl or perfluoroaryl, comprising;
i) reacting a compound
space="preserve" listing-type="equation">[(R.sub.F SO.sub.2).sub.2 CH].sub.n.sup.- M'"'"'.sup.n wherein M'"'"'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.
1 Assignment
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Accused Products
Abstract
Bis(perfluorosulphonyl)methanes, process for preparing same and uses thereof. The compounds of the invention are based on the formula (1/nM) [(RF SO2)2 CY]- in which Y denotes an electron-attracting group chosen from --C═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, RF denotes a perfluoroalkyl or perfluoroaryl grouping. Said compounds are especially useful in the production of electrochemical devices.
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Citations
22 Claims
- 1. A process for the preparation of a compound of the formula
- space="preserve" listing-type="equation">[(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 RF is perfluoroalkyl or perfluoroaryl, comprising; i) reacting a compound
space="preserve" listing-type="equation">[(R.sub.F SO.sub.2).sub.2 CH].sub.n.sup.- M'"'"'.sup.nwherein M'"'"'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.
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2. The process of claim 1, wherein said pseudohalide is selected from the group consisting of RSO3-, RCO2-, succinimidyloxy, phthalimidoxy, 1-benzotriazoloxy, oxynorbornene-2,3-dicarboximide, trifuloroethoxy, trichloroethoxy, imidazolyl, triazolyl, nitrophenoxy, dinitrophenoxy, perhalophenoxy and O-acylurea.
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3. The process of claim 1, wherein said aprotic nucleophilic base is selected from the group consisting of trialkylamines, pyridines, imidazoles, amidines, guanidines and mixtures thereof.
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4. The process of claim 1, wherein said aprotic nucleophilic base is selected from the group consisting of triethylamine, diisopropylethylamine, quinuclidine, 1,4-diazabicyclo[2.2.2[octane, pyridine, alkylpyridine, dialkylaminopyridine, N-alkylimidazole, imidazo[1,2-a]pyridine;
- 1,5-diazabicyclo[4.3.0]non-5-ene, 1,8-diazabicyclo[5.4.0]undec-7-ene, tetramethylquanidine, 1,3,4,7,8-hexahydro-1-methyl-2H-pyrimido[1,2-a]pyrimidine and mixtures thereof.
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5. The process of claim 1, wherein said nucleophilic base is immobilized.
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6. The process of claim 1, wherein said compound XY is a halide prepared in situ from an acid compound RZOH or a compound RZOM where M is a metal or an organic radical by reacting with a halogenating agent selected from the group consisting of SOCl2, SOBr2, SF4, (C2 H5)2 NSF3, COCl2 (COCl)2, (COBr)2, (CCl3 O)2 CO, [(CH3)2 N═
- CHCl] Cl, triphenylphosphine/CCl4 mixture, dichloromethyl methyl ether and mixtures thereof.
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7. The process of claim 1 or 2, wherein when Y is RZ and Z is a carbonyl, then RZX is an anhydride RCO--O--COR.
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8. The process of claim 7, wherein said anhydride RCO--O--COR is obtained in situ by reacting an acid RCOOH with a molecular dehydrating agent selected from the group consisting of carbodiimides, alkyl ethynyl ethers, succinimidyl carbonates, succinimidyl oxalates, (SCO)2 C2 O2), phthalimidyl carbonates, phthalimidyl oxalates, 1-benzotriazoyl carbonates, 1-benzotriazolyl oxalates, phthalimidyl carbonates, phthalimidyl oxalates, 1-benzotriazolyl carbonates, 1-benzotriazolyl oxalates, nitrophenyl oxylate, dinitrophenyl oxylate, perhalophenyl oxalate, nitrophenyl carbonate, dinitrophenyl carbonate, perhalophenyl oxylate, trifluoroethyl carbonate, trifluoroethyl oxalate, trichloroethyl carbonate, trichloroethyl oxalate, Pφ
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3 /diethylazodicarboxylate, Pφ
3 /dithiodipyridine, carbonyldiimidazole, phenylphosphorodiimidazole, amide acetals, 2-alkoxy-1-alkoxycarbonyl-1,2-dihydroquinoline, O-benzotriazol-1-yl-N,N,N'"'"',N'"'"'-tetramethyluronium or O-benzotriazol-1-yl-N,N,N'"'"',N'"'"'-tetramethyluronium or O-benzotriazol-1-yloxytrisdimethylaminophosphonium salts, aromatic sultones, isobutyl chloroformate, diphenylphosphorchloroiridate, ethylene chlorophosphite, diethylethlene pyrophosphite, bis(2-oxo-3-oxazolidinyl)phosphinyl chloride and mixtures thereof.
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3 /diethylazodicarboxylate, Pφ
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9. The process of claim 1, wherein said salt of the cation M is selected from the group consisting of carbonate, phosphate, chloride and hydroxide of the cation M.
- 10. A compound of the formula
- space="preserve" listing-type="equation">[(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 RF is perfluoroalkyl or perfluoroaryl.
- 11. A compound of the formula
- space="preserve" listing-type="equation">[(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 RF is perfluoroalkyl or perfluoroaryl.
- 12. A compound of the formula
- space="preserve" listing-type="equation">[(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 RF is perfluoroalkyl or perfluoroaryl.
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13. The compound of any one of claims 10 to 12, wherein RF is C1-20 perfluoroalkyl or C6-20 perfluoroaryl.
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14. The compound of any one of claims 10 to 12, wherein R is selected from the group consisting of C1-30 alkyl, C1-8 perhaloalkyl, C6-12 aryl, C6-12 perhaloaryl, arylalkyl, oxaalkyl, azaalkyl and thioalkyl.
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15. The compound of any one of claims 10 to 12, wherein R contains contains an element selected from the group consisting of --C═
- C--, --C═
C--C═
O, --C═
SO2, --C═
Cφ
, --OH, --NH2, --COOH, --N═
C═
O, --O--O--, --N═
N, N2 ═
CH--, --SO2 N3 and --S--S--.
- C--, --C═
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16. The compound of any one of claims 10 to 12, wherein R is mesomorphic or chromophoric.
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17. The compound of any one of claims 10 to 12, wherein R contains an element selected from the group consisting of a hindered phenol, a quinone an amide, a nitrile, a disulfide, a thioamide, a ferrocene, a phenothiazine, a bis(dialkylaminoaryl) group, a nitroxide or an aromatic imide.
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18. The compound of any one of claims 10 to 12, wherein RZ is a polypeptide or amino acid.
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19. An ion conductive material comprising at least one salt, wherein said salt is a compound according to any one of claims 10 to 12.
- 20. The process of claim 1, wherein the solubility of a compound M'"'"'1/n X formed in the reaction medium is lower than that of a compound (NuH) [(RF SO2)2 CY]-, wherein said process comprises
i) reacting a compound - space="preserve" listing-type="equation">[(R.sub.F SO.sub.2).sub.2 CH].sub.n.sup.- M'"'"'.sup.n
wherein M'"'"'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; and ii) reacting the product of step i) with a salt of the cation M.
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21. An ion conductive material comprising at least one salt, wherein said salt is a compound according to any one of claims 10 to 12;
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a solvent for said salt.
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22. The ion conductive material of claim 21 wherein said solvent is selected from the group consisting of ethylene oxide copolymer, dialkyl ether of poly(ethylene glycol), acrylonitrile-butadiene, poly(ethylene oxide), polyethylene glycol-co oxymethylene, ethylene oxide-methylglycidyl ether copolymer and mixtures thereof.
Specification