4.8 Article

Electromagnetic Mill Promoted Mechanochemical Solvent-Free Palladium-Catalyzed Borylation of Aryl Bromides

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ORGANIC LETTERS
卷 24, 期 36, 页码 6604-6608

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AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.2c02600

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  1. National Natural Science Foundation of China [22078178]
  2. Youth Innovative Talents Attracting and Cultivating Plan of Colleges and Universities in Shandong Province

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The electromagnetic mill (EMM) has enabled the palladium-catalyzed borylation of aryl bromides under solvent-free conditions with low palladium catalyst loading (0.05-0.5 mol %). This method offers numerous advantages, including a wide substrate scope, tolerance towards various functional groups, short reaction times, no additional heating requirements, and practical gram-scale synthesis. The EMM system not only shows promising potential for industrial applications, but also expands the possibilities of solvent-free solid-state metal-catalyzed syntheses.
The electromagnetic mill (EMM) promoted mechanochemical solvent-free palladium-catalyzed borylation of aryl bromides using low palladium catalyst loading (0.05-0.5 mol %) was realized. This protocol exhibits many advantages, such as broad substrate scope, good functional group tolerance, short reaction times, no additional heating, and practical gram-scale synthesis. This EMM system not only showed excellent prospects for industrial application but also unlocked broad areas of solvent-free solid-state metal-catalyzed syntheses.

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