Semi-heterogeneous photo-Cu-dual-catalytic cross-coupling reactions using polymeric carbon nitrides

Sci Bull (Beijing). 2022 Jan;67(1):71-78. doi: 10.1016/j.scib.2021.08.001. Epub 2021 Aug 5.

Abstract

A merger of copper catalysis and semiconductor photocatalysis using polymeric carbon nitride (PCN) for multi-type cross-coupling reactions was developed. This dual-catalytic system enables mild C-H arylation, chalcogenation, and C-N cross-coupling reactions under visible light irradiation with a broad substrate scope. Good-to-excellent yields were obtained with appreciable site selectivity and functional group tolerance. Metal-free and low-cost PCN photocatalyst can easily be recovered and reused several times.

Keywords: C–H functionalization; C–N coupling; Dual catalysis; Heterogeneous photocatalysis; Polymeric carbon nitride.