期刊
ACS CATALYSIS
卷 11, 期 17, 页码 10964-10973出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.1c02738
关键词
C-H oxidation; porous organic polymer; manganese catalyst; asymmetric epoxidation; hydrogen peroxide
资金
- National Natural Science Foundation of China [21773273, 21802153, 21902166]
- Dalian National Laboratory for Clean Energy (DNL) Cooperation Fund, CAS [DNL201904]
This study successfully developed bioinspired manganese catalysts using porous organic polymers (POPs) as scaffolds, which showed high reactivity in oxidation reactions and could be easily recycled and reused. The single-site nature of the catalyst prevented oxidative degradation during the reaction, making it a promising approach for selective oxidation reactions.
Bioinspired manganese complexes have emerged over recent decades as attractive catalysts for a number of selective oxidation reactions. However, these catalysts still suffer from oxidative degradation. In the present study, we prepared a series of porous Mn-N-4 catalysts in which the catalytic units are embedded in the skeleton of porous organic polymers (POPs). These POPbased manganese catalysts demonstrated high reactivity in the oxidation of aliphatic C-H bonds and the asymmetric epoxidation of olefins. Furthermore, these catalysts could be readily recycled and reused due to their heterogeneous nature. Morphological characterization revealed that the Mn-N-4 complex was individually distributed over a porous polymer network. Remarkably, the nature of the single-site catalyst prevented oxidative degradation during the reaction. The present work has thus developed a successful approach for bioinspired single-site manganese catalysts in which the oxidation reaction is confined to a specific channel in an enzyme-like mode.
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