Process for the preparation of aryl perfluoroalkyl ketones

Details Process for the preparation of aryl perfluoroalkyl ketones Process for the preparation of aryl perfluoroalkyl ketones

1988-07-28

1989-05-30

Reamer, James H.

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

Organic compounds

Oxygen containing

568322, 568323, C07C 4545

Patent

active

048353183

ABSTRACT:
A process for the preparation of arylperfluoroalkyl ketones of the general formula I ##STR1## wherein R.sup.1 and R.sup.5 represent at least one of the substituents hydrogen, halogen, alkyl, alkoxy, alkylthio and perfluorinated alkyl, each having from 1 to 6 carbon atoms and n is an integer from 1 to 6, which comprises reacting an aryl carbonyl compound having the general formula II ##STR2## wherein R.sup.1 to R.sup.5 have the above-mentioned meaning and X as a monovalent moiety represents fluorine, chlorine or bromine and as a bivalent moiety the oxygen atom of an anhydride bridge, with a perfluoroalkyl halide of the general formula C.sub.n F.sub.2n+1 -Hal (III), wherein Hal represents chlorine, bromine or iodine and n is an integer from 1 to 6, in the presence of a trisdialkyl amide of phosphorus acid of the general formula P[N(alkyl)2]3 (IV).

REFERENCES:
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