Catalytic perfluoroalkylation of aromatic compounds is known in the art. The process, as taught in the art, provides a method whereby an unfunctionalized aromatic group is substituted with a perfluoroalkyl group with the concurrent production of hydrogen iodide. A process for the catalytic addition of perfluoroalkyl iodide to benzene using a ruthenium catalyst on carbon and employing solid potassium carbonate as a hydrogen iodide acceptor is disclosed in European Patent Application No. 0 114 359 of Werner. Good yields of the perfluoroalkyl benzene are reported but only when large amounts of catalyst are used.