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

C - Chemistry, Metallurgy

07

C

260/585.3, 260/3

C07C 49/04 (2006.01) C07C 45/48 (2006.01) C07D 319/12 (2006.01)

Patent

CA 1086756

Abstract of the disclosure: 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 cle- ment 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 synthe- sized perfluoroketones are liquids of high chemical and thermal stability.

289210

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