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

• Published in: Dyes and pigments Vol. 225; p. 112077
• Main Authors: Gao, Ziyuan, Jiang, Ying, Wang, Dan, Wang, Dongping, Wang, Ning, Li, Jun
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.06.2024
• Subjects: Amines; Oxidative homocoupling; Photocatalyst; Porous organic polymer; Porphyrin; Porous organic polymer; Amines; Porphyrin; Oxidative homocoupling; Photocatalyst
• ISSN: 0143-7208; 1873-3743
• DOI: 10.1016/j.dyepig.2024.112077

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. [Display omitted] •A stable porphyrin-based porous organic polymer H2Pp-POP was successfully synthesized by free radical self-polymerization.•As Heterogeneous photocatalyst, the H2Pp-POP exhibited excellent activity and circulability in selective oxidation of amines to imines.•Both of 1O2 and O2.•− are the main reactive oxygen species in the photocatalytic oxidation of amines.