Method of preparing fluorine-containing ethane derivatives

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

1992-07-14

1993-05-25

Lone, Werren D.

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

Organic compounds

Halogen containing

502150, 502169, 570165, 570168, C07C 1700, B01J 3100

Patent

active

052142230

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.

REFERENCES:
patent: 2462359 (1949-02-01), Calfee et al.
patent: 3810948 (1974-05-01), Muessdoerffer et al.
patent: 4258225 (1981-03-01), Feiring
patent: 4374289 (1983-02-01), Van Der Puy et al.
patent: 4383128 (1983-05-01), Van Der Puy et al.

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