A Triformylphloroglucinol-based Covalent Organic Polymer: Synthesis,Characterization and Its Application in Visible-light-driven Oxidative Coupling Reactions of Primary Amines |
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| Authors: | LI Xiaodong SU Qing LIU Ziqian LUO Kexin LI Guanghua WU Qiaolin |
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| Affiliation: | 1. College of Chemistry, Jilin University, Changchun 130012, P. R. China;2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, P. R. China |
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| Abstract: | A triformylphloroglucinol-based A3B2-typed covalent organic polymer(TFG-BPTH) was successfully constructed by the condensation reaction of triformylphloroglucinol(TFG) and 2,5-bis(2-propynyloxy)terephthalo-hydrazide(BPTH) under solvothermal conditions. The structure of the TFG-BPTH was confirmed by spectra techniques including FTIR and solid-state 13C CP/MAS NMR spectroscopy. The mophological features of TFG-BPTH were analyzed using scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The TFG-BPTH possessed good thermal and chemical stability, and exhibited good photocatalytic activity as a metal-free heterogeneous catalyst for oxidation of amines to valuable imines under visible light irradiation using O2 as green oxidant. In addition, the catalyst could be readily recovered from the reaction mixture by simple filtration and reused for at least five cycles without any observable change in structure and catalytic activity. |
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| Keywords: | Covalent organic polymer Condensation reaction Oxidation of amine Photocatalysis Heterogeneous catalysis |
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