Production of compounds with perfluoroalkanesulfonic acid residues, used e.g. in electrolytes and batteries, involves reacting perfluoroalkanesulfonic anhydride with dialkyl carbonate in presence of perfluoroalkanesulfonic acid

摘要

A method for the production of compounds with perfluoroalkanesulfonic acid residues (II) involves reacting perfluoroalkanesulfonic acid anhydride with dialkyl carbonate in presence of perfluoroalkanesulfonic acid. Independent claims are also included for: (a) a method for the production of perfluoroalkanesulfonate salts (II) by reacting esters (I) with compounds of formula XR1R2R3 (III); (b) a method for the production of (II) by reacting (I) with compounds of formulae (III)-(X); (c) compounds of formula Mn+(OSO2CF3)n-; (d) liquid, gel-like or solid electrolytes containing compounds as described in (c), optionally mixed with other salts; and (e) primary and secondary batteries, condensers, super-condensers and/or galvanic cells containing compounds as in (c) or electrolytes as in (d) or compounds (I) obtained by this method. X = P or N; R1-R3 = H, 1-16C alkyl (optionally partly substituted with other groups, preferably F, Cl, N(1-6C fluoroalkyl with up to 13 F atoms)2, O-fluoroalkyl (as above), SO2-(fluoroalkyl) or fluoroalkyl, optionally substituted aryl or optionally substituted heterocyclic groups), or (1-16C alkyl)-aryl, aryl or heteroaryl (all optionally partly substituted, preferably with F, Cl, Br, NO2, CN, alkyl, aryl or heterocyclic groups), in which 1, 2 or 3 CH2 groups in alkyl or alkylene residues may be replaced by hetero-atoms, preferably O, NH or N(1-6C alkyl), and not all of the groups R1-R3 may be perfluorinated or perchlorinated at once; R1-R5 = H, halogen (preferably fluorine, but with no N-halogen bonds), 1-8C alkyl (optionally partly substituted as above), aryl, alkylaryl or (alkyl)-heterocyclic groups; Mn+ = formulae (XI)-(XIX); X, Y = P or N.