Efficient and reusable catalysis of benzylic C–H oxidation over layered [Co5(OH)6]4+ derivatives

Wen, Ming‐Shien; Peng, Chengzhong; Song, Xueling; Zhang, Lu; Fei, Honghan

doi:10.1039/d2cc02424a

Chem. Commun.

2022

DOI: 10.1039/d2cc02424a

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Efficient and reusable catalysis of benzylic C–H oxidation over layered [Co₅(OH)₆]⁴⁺ derivatives

Ming‐Shien Wen

Chengzhong Peng

Xueling Song

et al.

Abstract: Aerobic oxidation of benzylic C(sp3)-H bonds in a green and heterogeneous manner is a major target in organic catalysis. Herein, we report the synthesis of 3D coordination polymers containing [Co5(OH)6]4+...

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Cited by 3 publications

References 40 publications

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Nitrate‐Anion‐Induced Formation of a 2D Metal‐Organic Framework with an Unconventional Kagomé Lattice Exhibiting Methanol‐Mediated Ketone Catalysis

Kumar Dhara,

Fu,

Bao

et al. 2024

Chemistry A European J

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Metal‐organic frameworks (MOFs) with kagomé lattice are attractive for their unique physical and chemical properties, but little attention has been paid to their catalytic properties. Herein, we report a 2D MOF based on a phosphonato‐amino‐carboxylate ligand (NaHL), i.e., [Na0.33Co(L)(CH3OH)2](NO3)0.33 (2), which exhibits an unconventional kagomé lattice. The formation of this kagomé lattice is caused by the selective recognition of the NO3‐ anion by the phenolato group of L2‐ as evidenced by theoretical calculations. Compound 2 can be utilized for the α‐methoxymethylation and aminomethylation of aromatic ketones using methanol as a C1 source. Interestingly, compound 2 can be exfoliated in‐situ into nanosheets with one‐layer thickness under catalytic reaction conditions, which improves the catalytic efficiency. Based on the results of experiments and theoretical calculations, we proposed possible pathways for the catalytic reaction.

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Nitrate‐Anion‐Induced Formation of a 2D Metal‐Organic Framework with an Unconventional Kagomé Lattice Exhibiting Methanol‐Mediated Ketone Catalysis

Kumar Dhara,

Fu,

Bao

et al. 2024

Chemistry A European J

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Green Oxidation of Isochromans to Isochromanones with Molecular Oxygen Catalyzed by a Tetranuclear Vanadium Cluster

Huang

Chen

et al. 2023

Chin. J. Chem.

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Comprehensive Summary Isochromanone is the core structure of many bioactive compounds. Direct oxidation of isochromans is one of leading methods for the construction of isochromanones, while most established processes remain suffering from the use of environmentally unfriendly metal oxidants, harsh reaction conditions, and the difficulty in catalyst recycling and product separation. Herein, we report a convenient, cost‐effective, and green method for the synthesis of high‐value added isochromanones via isochroman oxidations with O2 by a novel heterogeneous vanadium cluster catalyst (Cat.1) under mild conditions. This reaction protocol demonstrates high catalytic activity with good catalyst recyclability and reusability for a wide scope of substrates.

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Environmentally friendly synthesis of 2D Co-MOF for transformation of isochromans to isochromanones by activating O2

Lian,

Chen,

Guo

et al. 2025

Journal of Molecular Structure

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Efficient and reusable catalysis of benzylic C–H oxidation over layered [Co₅(OH)₆]⁴⁺ derivatives

Abstract: Aerobic oxidation of benzylic C(sp3)-H bonds in a green and heterogeneous manner is a major target in organic catalysis. Herein, we report the synthesis of 3D coordination polymers containing [Co5(OH)6]4+...

Cited by 3 publications

References 40 publications

Nitrate‐Anion‐Induced Formation of a 2D Metal‐Organic Framework with an Unconventional Kagomé Lattice Exhibiting Methanol‐Mediated Ketone Catalysis

Nitrate‐Anion‐Induced Formation of a 2D Metal‐Organic Framework with an Unconventional Kagomé Lattice Exhibiting Methanol‐Mediated Ketone Catalysis

Green Oxidation of Isochromans to Isochromanones with Molecular Oxygen Catalyzed by a Tetranuclear Vanadium Cluster

Environmentally friendly synthesis of 2D Co-MOF for transformation of isochromans to isochromanones by activating O2

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