Process for the dimerization of hexafluoropropene oxide

Details Process for the dimerization of hexafluoropropene oxide Process for the dimerization of hexafluoropropene oxide

1980-06-12

1981-12-01

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5158

Patent

active

043035930

ABSTRACT:
In the dimerization of hexafluoropropene oxide to give oligomeric acid fluorides of the formula ##STR1## the ratio of the oligomeric constituents formed is directed, in an improved manner, towards the formation of the dimer (n=0) if the reaction is carried out in the presence of a catalyst system which consists of a mixture of a copper (I) compound and a copper (II) compound mixed with a complex-forming agent from the group of the nitriles, isocyanides, tertiary phosphines and cyclic hydrocarbons with 6 to 12 ring atoms and 2 to 3 double bonds in the ring, and an aprotic organic solvent. The dimer is an intermediate product in the synthesis of perfluoropropyl perfluorovinyl ether, the latter being employed as a comonomer in fluorine-containing copolymers.

REFERENCES:
Kuehne, Gerhard et al. Chemical Abstracts, vol. 91 (1979) #92239q.

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