Process for preparing fluorinated compound

C - Chemistry – Metallurgy – 07 – C

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C07C 19/08 (2006.01) C07C 17/278 (2006.01) C07C 17/28 (1990.01)

Patent

CA 2070924

The present invention is directed to a fluorinated compound of the formula: R-CCl2CF2CF3 (I) in which R is a perfluoroalkyl group, a perchloroalkyl group, a polyfluoroalkyl group, a polychloroalkyl group or a polychloropolyfluoroalkyl group, each having at least one carbon atom. The fluorinated compound of the formula (I) is prepared with high selectivity and a high yield by reacting tetrafluoroethylene with a compound of the formula: R-CFCl2 (II) in which R is the same as defined above in the presence of a Lewis acid.

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