Asymmetric synthesis of trifluoromethylated allylic amines using α,β-unsaturated N-tert-butanesulfinimines

[GRAPHICS] The trifluoromethide ion generated in situ from TMSCF3 and TBAT (tetrabutylammonium triphenyldifluorosilicate), as well as TMAF (tetramethylammonium fluoride), adds to the alpha,beta -unsaturated hkert-butanesulfinimines exclusively in a 1,2 fashion with high diastereoselectivities, affording the first examples of chiral trifluoromethylated allylic amines.