Gammagammagamma-trifluorocarbonyl compounds are easily obtained in a good yield by introduction of the 1,1,1-trifluoroethyl moiety (CF3-CH2-) on the alpha-methylene group of a ketone.
Copper-catalyzed acyltrifluoromethylation of alkenes is described, affording trifluoroethyl indanones and related cyclic ketones in promising yields with excellent diastereoselectivity.