Method of preparing fluorine-containing ethane derivatives

Details Method of preparing fluorine-containing ethane derivatives Method of preparing fluorine-containing ethane derivatives

1991-04-11

1992-12-15

Siegel, Alan

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

Organic compounds

Halogen containing

C07C 1700

Patent

active

051719002

ABSTRACT:
A method of preparing fluorine-containing ethane derivatives using a catalyst mixture which comprises a metal halide and a sulfonic acid derivative is described. The method is particularly well suited for preparing CF.sub.3 CHCl.sub.2 (R123) from perchloroethylene and for preparing CF.sub.3 CH.sub.2 F (R134a) from trifluoroethylene.

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patent: 5015791 (1991-05-01), Rao
Feiring, J. Fluorine Chem., 19:7-18 (1979).
Andrews et al., J. Fluorine Chem. 13:273-78 (1979).

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