Process for the preparation of a-,a-,a- trifluoroanisoles

Details Process for the preparation of a-,a-,a- trifluoroanisoles Process for the preparation of a-,a-,a- trifluoroanisoles

C - Chemistry, Metallurgy

07

C

260/645.3

C07C 41/22 (2006.01) C07C 43/225 (2006.01)

Patent

CA 1276184

ABSTRACT Trifluoroanisoles of the formula Image where m is 1 or 2 and n is 0 to 3, are prepared by reacting hydrogen fluoride with trichloroanisoles of the formula Image in the vapor phase, in the presence of a fluorinated alumina catalyst, especially at a temperature below 650°C.

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