Process for the preparation of fluorine-containing ketones

Details Process for the preparation of fluorine-containing ketones Process for the preparation of fluorine-containing ketones

1977-10-20

1979-01-23

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603406, 260594, C07C 4904

Patent

active

041361210

ABSTRACT:
Perfluorocarboxylic acid salts of a monovalent metal are reacted with perfluorocarboxylic acid fluorides in aprotic polar solvents. Perfluoroketones are obtained.
The salt of the perfluorocarboxylic acid can be replaced by alkali metal salts of formic acid, oxalic acid or of oxygen-containing mineral acids, the central atom of which is an element of the groups IIIA to VIIA of the periodic table and which mineral acid is weaker than trifluoroacetic acid. The same result is obtained if the anhydride of the perfluorocarboxylic acid is contacted with an alkali metal fluoride. The synthesized perfluoroketones are liquids of high chemical and thermal stability.

REFERENCES:
patent: 3012069 (1961-12-01), Drysdale
patent: 3240811 (1966-03-01), Drysdale
patent: 3513203 (1970-05-01), Sianesi et al.
Migndichian, Organic Synthesis, p. 123, Reinhold Publishing Corp. 1957.

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