A mild photocatalytic C-H bond selective oxidation mediated by metal-free photocatalyst 2-Methylanthraquinone was reported. Glass microchannel reactor can enhance the absorption of photon energy and oxygen by the reaction mixture, so as to greatly improve the reaction efficiency of photocatalytic reaction in glass microchannel reactor. This reaction method can quickly oxidize alkyl aromatics into corresponding oxidation products to obtain aromatic ketones in high yield. CO 2022 Elsevier Ltd. All rights reserved.
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