Carbon Nitride with Single-Atom Nickel as Co-Catalyst for Visible-Light Promoted C—O Coupling†,Chinese Journal of Chemistry

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Carbon Nitride with Single-Atom Nickel as Co-Catalyst for Visible-Light Promoted C—O Coupling†
Chinese Journal of Chemistry ( IF 5.5 ) Pub Date : 2023-08-01 , DOI: 10.1002/cjoc.202300329
En Zhao ₁ , Lijie Chen ₁ , Qi Zhu ₁ , Zhaohui Chen ₁ , Yanping Wei ₂ , Wenjun Zhang ₁ , Lin Dong ₁ , Weiwei Fang ₁ , Zupeng Chen ₁

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Solar-driven cross-coupling reactions by dual nickel/photocatalysis under mild conditions have received considerable attention. However, the existing photo/nickel dual catalytic cross-coupling reactions require the addition of expensive photosensitizers and organic ligands, and the catalytic activity is inadequate. Herein, we report a nickel single-atom heterogeneous catalyst supported on mesoporous carbon nitride for photocatalytic C—O coupling reaction between 4-bromobenzonitrile and ethanol, affording 4-ethoxybenzonitrile in excellent yield compared to a semi-heterogeneous catalytic system. The catalytic system exhibits a broad substrate scope including ketones, aldehydes, esters, and amides. This work presents a simple and cost-effective strategy for anchoring metal single atoms onto carbon nitride, providing a new platform for enabling high-performance photocatalytic production of aryl ether compounds.

中文翻译：

氮化碳与单原子镍作为可见光促进 C-O 偶联的助催化剂†

在温和条件下通过双镍/光催化进行的太阳能驱动的交叉偶联反应受到了相当多的关注。然而，现有的光/镍双催化交叉偶联反应需要添加昂贵的光敏剂和有机配体，催化活性不足。在此，我们报道了一种负载在介孔氮化碳上的镍单原子多相催化剂，用于4-溴苯甲腈和乙醇之间的光催化CO偶联反应，与半多相催化体系相比，以优异的产率提供4-乙氧基苯甲腈。该催化体系具有广泛的底物范围，包括酮、醛、酯和酰胺。这项工作提出了一种简单且经济高效的策略，将金属单原子锚定到氮化碳上，为芳基醚化合物的高性能光催化生产提供了一个新平台。

更新日期：2023-08-01

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