Efficient Asymmetric Synthesis of α-Trifluoromethyl-Substituted Primary Amines via Nucleophilic 1,2-Addition to Trifluoroacetaldehyde SAMP− or RAMP−Hydrazone

[reaction: see text] An efficient asymmetric synthesis of alpha-trifluoromethyl-substituted primary amines via nucleophilic 1,2-addition of alkyllithium reagents to trifluoroacetaldehyde SAMP- or RAMP-hydrazone followed by benzoylation and SmI(2)-promoted nitrogen-nitrogen single bond cleavage is described.