Fluorination of trichloromethyl groups

Details Fluorination of trichloromethyl groups Fluorination of trichloromethyl groups

1976-10-12

1978-03-14

Thomas, Earl C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 2514

Patent

active

040790894

ABSTRACT:
A process for the preparation of a trichloromethyl-trifluoromethylbenzene of the formula ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, fluorine, chlorine and bromine which comprises contacting a bis-(trichloromethyl)-benzene of the formula ##STR2## wherein R.sup.1 and R.sup.2 have the previously assigned significance with less than 6 mols of anhydrous hydrogen fluoride in the presence of a halogen transfer catalyst.

REFERENCES:
patent: 1967244 (1934-08-01), Holt et al.
patent: 2005712 (1935-10-01), Holt et al.
patent: 3258500 (1966-06-01), Swamer et al.
patent: 3379780 (1968-04-01), Robinson
patent: 3457310 (1969-07-01), Fischback
patent: 3742074 (1973-06-01), Hermann et al.

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