Abstract

A photocatalysis-involved α-amino radical provides an appealing approach for rapid construction of complex amine architectures. Reported herein is an organophotoredox catalytic approach to α-C-H alkylation and heteroarylation of benzyl anilines, which enables the introduction of valuable trifluoromethyl alcohol, chromanone, or pyridine motifs at the α position of amines. This protocol highlights metal-free, step and atom economies and broad substrate scopes (>80 examples). Control experiments and electron paramagnetic resonance spectroscopy identified the α-amino radical derived from the α-amino C-H bond.

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