Unusual interaction of perfluoroaromatic organozinc compounds with benzoyl chloride and DMF

The organozinc compounds obtained from chloropentafluorobenzene and octafluorotoluene in reactions with benzoyl chloride and DMF form N,N -dimethylbis(perfluoroaryl)methylamines; the addition of CuCl changes the direction of reaction towards the formation of corresponding polyfluoroaromatic ketones.