From methylarenes to esters: efficient oxidative Csp<sub><sup>3</sup></sub>–H activation promoted by CuO decorated magnetic reduced graphene oxide

Khalili, Dariush; Rousta, Marzieh; Khalafi‐Nezhad, Ali; Ebrahimi, Edris

doi:10.1039/d2nj00728b

New J. Chem.

2022

DOI: 10.1039/d2nj00728b

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From methylarenes to esters: efficient oxidative Csp_³–H activation promoted by CuO decorated magnetic reduced graphene oxide

Dariush Khalili

Marzieh Rousta

Ali Khalafi‐Nezhad

et al.

Abstract: Magnetic reduced graphene oxide supported CuO (rGO/Fe3O4-CuO) as the heterogeneous catalyst in cross dehydrogenative coupling (CDC) reactions has been demonstrated for the synthesis of esters using methyl aromatics, aldehydes/benzyl alcohols...

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Cited by 4 publications

References 93 publications

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CuO Decorated Magnetic Reduced Graphene Oxide Catalyzed Cross-Dehydrogenative Coupling of Thiols and Alkylbenzenes

Rousta,

Khalili,

Ebrahimi

et al. 2024

Catal Lett

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CuO Decorated Magnetic Reduced Graphene Oxide Catalyzed Cross-Dehydrogenative Coupling of Thiols and Alkylbenzenes

Rousta,

Khalili,

Ebrahimi

et al. 2024

Catal Lett

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Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water

Khalili,

Ramjerdi,

Boostani

et al. 2024

Biochar

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This study has introduced a pioneering methodology by employing biochars as a basic carbocatalyst in the context of multicomponent reactions. Biochars were produced from different manures and organic wastes using the pyrolysis-carbonization process under limited oxygen conditions. The prepared biochars were well characterized using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Brunauer–Emmett–Teller (BET) analysis, and powder X-ray diffraction (XRD). The chemical characteristics and potentiometric titration analysis provide compelling evidence of the intriguing basicity properties exhibited by the prepared biochars. The pH values, ash content, and potentiometric titration results confirmed the exceptional basicity characteristics of cow manure biochar formed at 600 oC (CB600), establishing it as the most basic carbocatalyst in this study. Encouraged by these initial results, the activity of the biochars as basic carbocatalysts was evaluated in multicomponent synthesis of 4H-benzo[h]chromene and pyranopyrazoles and 600 °C exhibited the most pronounced catalytic performance owing to its superior total basicity. By these findings, it can be asserted that this work introduces the groundbreaking application of biochars as potent basic carbocatalysts for the multicomponent synthesis of structurally diverse heterocycles. Unveiling the vital basic role of biochars will definitely open up new opportunities in organic chemistry and provide salient features for environmentally-friendly chemistry, including easy retrieval, non-toxicity, and widespread accessibility. Graphical Abstract

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Morphology controlled Cu nanostructures grafted over rGO as highly efficient and recyclable heterogeneous catalysts to develop 1,2,3-triazole derivatives under click conditions

Goswami

Naithani

Kumar

et al. 2023

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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From methylarenes to esters: efficient oxidative Csp_³–H activation promoted by CuO decorated magnetic reduced graphene oxide

Abstract: Magnetic reduced graphene oxide supported CuO (rGO/Fe3O4-CuO) as the heterogeneous catalyst in cross dehydrogenative coupling (CDC) reactions has been demonstrated for the synthesis of esters using methyl aromatics, aldehydes/benzyl alcohols...

Cited by 4 publications

References 93 publications

CuO Decorated Magnetic Reduced Graphene Oxide Catalyzed Cross-Dehydrogenative Coupling of Thiols and Alkylbenzenes

CuO Decorated Magnetic Reduced Graphene Oxide Catalyzed Cross-Dehydrogenative Coupling of Thiols and Alkylbenzenes

Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water

Morphology controlled Cu nanostructures grafted over rGO as highly efficient and recyclable heterogeneous catalysts to develop 1,2,3-triazole derivatives under click conditions

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From methylarenes to esters: efficient oxidative Csp3–H activation promoted by CuO decorated magnetic reduced graphene oxide

Abstract: Magnetic reduced graphene oxide supported CuO (rGO/Fe3O4-CuO) as the heterogeneous catalyst in cross dehydrogenative coupling (CDC) reactions has been demonstrated for the synthesis of esters using methyl aromatics, aldehydes/benzyl alcohols...

Cited by 4 publications

References 93 publications

CuO Decorated Magnetic Reduced Graphene Oxide Catalyzed Cross-Dehydrogenative Coupling of Thiols and Alkylbenzenes

CuO Decorated Magnetic Reduced Graphene Oxide Catalyzed Cross-Dehydrogenative Coupling of Thiols and Alkylbenzenes

Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water

Morphology controlled Cu nanostructures grafted over rGO as highly efficient and recyclable heterogeneous catalysts to develop 1,2,3-triazole derivatives under click conditions

Contact Info

Product

Resources

About

From methylarenes to esters: efficient oxidative Csp_³–H activation promoted by CuO decorated magnetic reduced graphene oxide