Process for producing perfluorocarboxylic acid fluoride

Details Process for producing perfluorocarboxylic acid fluoride Process for producing perfluorocarboxylic acid fluoride

1994-04-26

1995-03-21

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic halides

C07C 5913, C07C 5162

Patent

active

053997549

ABSTRACT:
A process of producing a perfluorocarboxylic acid fluoride having the formula (1): ##STR1## wherein n is an integer of at least 2, comprising effecting oligomerization of hexafluoropropylene oxide in the presence of an alkali metal fluoride a sulfone or a mixture of a sulfone with an ether having the formula (2):

REFERENCES:
patent: 3412148 (1968-11-01), Arboqast
patent: 3721696 (1973-03-01), Sianesi et al.
patent: 4894484 (1990-01-01), Lagow et al.
patent: 4973748 (1990-11-01), Strutz
patent: 4973749 (1990-11-01), Siegemund et al.
patent: 4985594 (1991-01-01), Blickle et al.
patent: 4987254 (1991-01-01), Schwertfeger et al.

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