Process for preparing a perfluorinated or polyfluorinated alipha

Details Process for preparing a perfluorinated or polyfluorinated alipha Process for preparing a perfluorinated or polyfluorinated alipha

1985-08-05

1986-03-25

Evans, J. E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

20415762, 562550, C07C 5115, C07G 1300

Patent

active

045782229

ABSTRACT:
A process for preparing a perfluorinated or polyfluorinated aliphatic carboxylic acids wherein a perfluorinated or polyfluorinated aliphatic halide of the formula: R.sub.f X where R.sub.f is a perfluorinated or polyfluorinated aliphatic group and X is a halogen atom is reacted with carbon dioxide in the presence of metal under the irradiation of ultrasound and the reaction product is hydrolyzed to form a perfluorinated or polyfluorinated aliphatic carboxylic acid of the formula: R.sub.f COOH where R.sub.f is the same as defined above.

REFERENCES:
patent: 3311657 (1967-03-01), Graham
patent: 3542859 (1970-11-01), Litt et al.
patent: 3706809 (1972-12-01), Moroe et al.
patent: 3711560 (1973-01-01), Ramsden
patent: 4034000 (1977-07-01), Schoenberg
patent: 4098806 (1978-07-01), Commeyras et al.
patent: 4221734 (1980-09-01), Commeyras et al.
patent: 4466870 (1984-08-01), Boudjouk et al.

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