Domino Reaction to Functionalized 2-Hydroxybenzophenones from Electron-Deficient Chromones and 1,3-Dicarbonyl Compounds

[摘要]：A base-promoted one-pot tandem reaction sequence has been developed to transform electron-deficient chromone-fused dienes 1 and 1,3-dicarbonyl compounds 2 to functionalized 2-hydroxybenzophenones 3 under mild conditions. This domino process, which involves multiple reactions, including Michael addition/cyclization/elimination, serves as an efficient, economic, and eco-friendly method for the construction of diversified 2-hydroxybenzophenone scaffolds without a transition-metal catalyst and inert atmosphere.

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