Oxidative Povarov reaction via sp³ C-H oxidation of N-benzylanilines induced by catalytic radical cation salt: synthesis of 2,4-diarylquinoline derivatives.

Oxidative Povarov reaction of N-benzylanilines was realized under catalytic radical cation salt induced conditions. The mechanism studies revealed that a radical intermediate was involved in this catalytic oxidation. This method provides a new way to synthesize 2,4-diarylquinoline derivatives.