Process for preparation fluorinated compound.

摘要

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 is prepared at a 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.