Catalytic Asymmetric Intermolecular Radical Aminotrifluoromethylation of Alkenes with Hydrazines by Cu(I)/CPA Cooperative Catalysis

A first catalytic enantioselective intermolecular radical aminotrifluoromethylation of alkene with hydrazine and Togni's reagent by Cu(I)/CPA cooperative catalysis has been reported, accessing diversely substituted CF3-containing enantioenriched diarylmethylamines bearing an alpha-tertiary stereocenter with high enantioselectivity and excellent chemoselectivity. The highly asymmetric induction of C-N bond formation between hydrazine and the carbocation intermediate was achieved by using a CPA catalystviahydrogen-bonding and ion pair interaction.