Magnetically recyclable Cu-BTC@Fe3O4-catalyzed synthesis of cyano functionalized chroman-4-ones
Mendeleev Communications（2023）
摘要
An intramolecular radical cascade acyl-cyanation of o-(allyloxy)benzaldehydes with Me3SiCN using magnetically recyclable Cu-BTC@Fe3O4 catalyst (BTC = 1,3,5-benzenetri- carboxylate) and peroxides as the stoichiometric oxidants affords 3-cyanomethyl-functionalized chroman-4-ones in moderate to good yields. The catalyst can be readily recovered with an external permanent magnet, with slight decrease in its activity after successive five runs.
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关键词
metal-organic frameworks, magnetic catalyst, chroman-4-ones, cyanation, radical cascade reaction, peroxides
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