Process for production of polyfluoroolefins

Details Process for production of polyfluoroolefins Process for production of polyfluoroolefins

1993-01-25

1994-01-04

Evans, Joseph E.

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

Organic compounds

Halogen containing

570124, C07C 2118, C07C 2308

Patent

active

052762211

ABSTRACT:
This invention concerns a process for the production of polyfluoroolefins by the catalytic addition of polyfluoroallylic fluorides to fluoroethylenes. 1:1 and 1:2 Adducts such as F-pentene-2 and F-heptene-3 can be formed selectively and reduced further to dihydro- or trihydropolyfluoroalkanes, which are useful as HFC cleaning agents.

REFERENCES:
patent: 2436357 (1948-02-01), Gochenour et al.
patent: 3662009 (1972-05-01), Hutchinson
patent: 4760208 (1988-07-01), Saran
patent: 5177272 (1993-01-01), Montanori et al.
Chemical Abstracts, vol. 112, No. 21, May 21, 1990, abstract No. 197607P, p. 640.
G. G. Belen'kii, et al., UDC 66.095.253:547.413 Institute of Neteroorganic Compounds, Academy of Sciences of the USSR, Moscow (1975).
Chang-Ming Hu, et al., Reactions of Perchlorofluoro Compounds VI. Rearrangement of Higher Perchlorofluoroolefins and Their Reactions with Nucleophiles and Electrophiles (1990).

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