Method for producing dichloropentafluoropropanes

Details Method for producing dichloropentafluoropropanes Method for producing dichloropentafluoropropanes

1992-07-20

1993-07-13

Lone, Werren B.

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

Organic compounds

Halogen containing

C07C 1728, C07C 2118

Patent

active

052275477

ABSTRACT:
A method for producing a dichloropentafluoropropane, which comprises reacting dichlorofluoromethane (R21) with tetrafluoroethylene (4F) in the presence of a Lewis acid catalyst for addition reaction to obtain dichloropentafluoropropane, wherein a halide containing at least one element selected from the group consisting of Sb, Nb, Ta, B, Ga, In, Zr, Hf and Ti, or AlBr.sub.3, or AlI.sub.3, is used as the Lewis acid.

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patent: 2449360 (1948-09-01), Austin
patent: 2462402 (1949-02-01), Joyce, Jr. et al.
patent: 3795710 (1974-03-01), Signeurin
Freidel-Craft and Related Reaction, Ed. George A. Olah, Dow Chemical of Canada, Ltd, Ontario, Canada, (1963), pp. 26-29.
Collection of Czechoslovak Chemical Communications, vol. 36, 1971, (Prague, CST), O. Paleta et al.: "Addition reactions of haloolefins. XI. Reaction of tetrafluoroethylene with monofluoromethanes in the presence of aluminum chloride", pp. 1867-1875.

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