Document Type and Number:
Japanese Patent JPH0211583
Kind Code:
B2
Abstract:
What are disclosed are methods for making compounds of the formula FSO2-O-CF2-Rf-COY, useful as intermediates for making perfluorinated vinyl ethers, wherein Rf is a single bond or perfluoralkylene and Y is fluorine or -OR, by heating an alpha , omega -bis-fluorosulfatoperfluoroalkane of the formula FSO2-O-CF2-Rf-CF2-O-SO2F in the presence of an alkali metal fluoride and/or an alkali metal hydrogen fluoride and, when Y is OR, in the presence of an alkanol, ROH.
Inventors:
GYUNTERU JIIGEMUNTO
UERUNERU SHUERUTOFUEEGERU
UERUNERU SHUERUTOFUEEGERU
Application Number:
JP12225982A
Publication Date:
March 14, 1990
Filing Date:
July 15, 1982
Export Citation:
Assignee:
HOECHST AG
International Classes:
C25B3/23; C07C67/00; C07C303/30; C07C305/00; C07C305/26; C07C325/00
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