Method for producing a dichloropentafluoropropanes

C - Chemistry – Metallurgy – 07 – C

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C07C 19/08 (2006.01) C07C 17/278 (2006.01)

Patent

CA 2046270

A method for producing a dichloropentafluoropropane, which comprises reacting dichlorofluoromethane (R21) with te- trafluoroethylene (4F) in the presence of a Lewis acid catalyst for addition reaction to obtain dichloropentafluoropropane, wher- ein a halide containing at least one element selected from the group consisting of Sb, Nb, Ta, B, Ga, In, Zr, Hf and Ti, or AlBr3, or AlI3, is used as the Lewis acid.

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