Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1992-07-20
1993-06-15
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C07C 1728
Patent
active
052200841
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.
REFERENCES:
patent: 2449360 (1948-09-01), Austin
patent: 2462402 (1949-02-01), Joyce
patent: 3795710 (1974-03-01), Seigneurin
Collection of Czechoslovak Chemical Communications, vol. 36, 1971, (Prague, CS), O. Paleta et al.: "Addition reactions of haloolefins. XI. Reaction of tetrafluoroethylene with monofluoromethanes in the presence of aluminum chloride", pp. 1867-1875.
Olah Friedel-Crafts and Related Reactions (1963) pp. 26-29.
Kawasaki Toru
Ohnishi Keiichi
Okamoto Hidekazu
Takei Ryutaro
Tanuma Toshihiro
Asahi Glass Company Ltd.
Lone Werren B.
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