Metal-Free Visible-Light-Induced Construction of Difluoro-Containing Dibenzazepines.

A metal-free photocatalytic protocol for efficient construction of difluoro-containing dibenzazepines is developed. The transformation is redox-neutral and environmentally benign, has a wide range of substrate scope, proceeds at room temperature under irradiation of visible light, and furnishes dibenzazepine derivatives in mild to excellent yield.