A stable porphyrin-based porous organic polymer as highly efficient heterogeneous photocatalyst for the oxidative homocoupling of amines

Abstract

With permanent photosensitivity and intrinsic porosity, porphyrin-based porous organic polymers (POPs) are potential candidates for photocatalytic reactions. Herein, H2Pp-POP was prepared via the free radical self-polymerization of [5,10,15,20-tetrakis(4-((4-vinylbenzyl)oxy)phenyl)porphyrin] (H2Pp) containing terminal styrene groups. The as-prepared H2Pp-POP possess superior photosensitivity, abundant pore structure, and robust stability, which endow it remarkable photocatalytic activity and recyclability. As a result, H2Pp-POP exhibits an excellent photocatalytic performance in the oxidative homocoupling of amines into imines, with high conversion rate and selectivity. This study provides a valuable way to synthesize efficient heterogeneous photocatalysts for the conversion of amine.