Abstract
The application of porous organic polymers is an emerging area of heterogeneous photocatalytic organic synthesis. In principle, the transfer of energy and electrons is significant to improve the photocatalytic efficiency. To obtain an efficient energy- and electron-transfer catalytic system, a porous organic polymer exhibiting both electron donor and electron acceptor properties (ZnTEPP-PBI) was synthesized using zinc porphyrin (ZnTEPP) and perylene bisimide (PBI) monomers as the structural units. Compared with that of ZnTEPP, the optical absorption range of the ZnTEPP-PBI polymer was expanded due to the introduction of the PBI monomer. By using ZnTEPP-PBI as the photocatalyst, the oxidative coupling of amines to imines was efficiently realized under visible light. In addition, a plausible pathway for the mechanism for the enhanced energy and electron transfer was proposed.
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