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I2-promoted selective oxidative cross-coupling/annulation of 2-naphthols with methyl ketones: A strategy to build naphtho[2,1- b ]furan-1(2 H)-ones with a quaternary center
A highly efficient and selective molecular iodine-promoted oxidative cross-coupling/annulation between 2-naphthols and methyl ketones has been realized. The reaction successfully constructed a new quaternary carbon center within 3(2H)-furanones. Our synthetic strategy provided an in situ iodination-based oxidative coupling pathway. Based on the experimental results, a self-sequenced iodination/Kornblum oxidation/Friedel-Crafts/oxidation/ cyclization mechanism was proposed.
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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem