Document Type and Number:
Japanese Patent JPH0240652
Kind Code:
B2
Abstract:
Perfluorocarbonyl compounds of the formulae IV and V (IV) (V) in which Rf denotes perfluoroalkyl, R'f denotes perfluoroalkylene, R denotes F, Cl, perfluoroalkyl or -OR''' (R'''=alkyl, aryl or aralkyl) and n denotes a number from 0 to 10, are prepared, starting from compounds of the formula I (I) in which Rf, R'f and n have the same meaning as in the formulae IV and V and R'' is F, Cl or perfluoroalkyl, by electrolysis in an electrolyte consisting of fluorosulfonic acid/alkali metal fluorosulfonate and, if necessary, esterification with R'''OH, and decomposition in the presence of catalytic amounts of alkali metal fluorides and/or aprotic N-bases. Most of the compounds IV and V are new; the latter are, above all, valuable heat transfer fluids, lubricating oils or intermediates for the preparation of other F-organic compounds.
Inventors:
HANSU MIRAUERU
GYUNTERU JIIGEMUNTO
UERUNERU SHUERUTOFUEGERU
GYUNTERU JIIGEMUNTO
UERUNERU SHUERUTOFUEGERU
Application Number:
JP14255281A
Publication Date:
September 12, 1990
Filing Date:
September 11, 1981
Export Citation:
Assignee:
HOECHST AG
International Classes:
C07C69/708; C07C45/51; C07C45/54; C07C49/16; C07C49/167; C07C51/00; C07C51/373; C07C51/62; C07C53/50; C07C59/21; C07C59/347; C07C59/58; C07C59/88; C07C67/00; C07C67/313; C07C67/317; C07C69/716; C07C301/00; C07C303/00; C07C305/00; C07C305/26
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