Preparation of perfluoroalkanecarboxylic acids and novel perfluo

Details Preparation of perfluoroalkanecarboxylic acids and novel perfluo Preparation of perfluoroalkanecarboxylic acids and novel perfluo

1985-02-08

1990-03-06

Lone, Werren B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

562541, 570135, 570153, C09F 702, C11C 100

Patent

active

049064169

ABSTRACT:
A process for preparing perfluoroalkanecarboxylic acids, wherein a perfluoroiodoalkane, R.sub.F I, is reacted with trichloroethylene in an acidic solvent in the presence of zinc, and the 2-perfluoroalkyl-1,1-dichloroethylene thus obtained is oxidized with the aid of permanganate, R.sub.F representing a straight chain or branched perfluoro radical containing one to 20 carbon atoms, together with certain novel perfluoroalkyldichloroethylenes having four or more carbon atoms so obtained.

REFERENCES:
patent: 2371757 (1945-03-01), Henne
patent: 2628988 (1953-02-01), Ruh
patent: 2634301 (1953-04-01), Ruh
patent: 3046304 (1962-07-01), Neville
patent: 3525758 (1970-08-01), Katsushima et al.
patent: 4478760 (1984-10-01), Blancou et al.

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