Visible Light‐Promoted Catalyst‐Free Difluoroalkylacylation of Alkenes Toward RCF₂‐Functionalized Chroman‐4‐ones

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The method efficiently synthesizes RCF2-functionalized chroman-4-ones at room temperature, highlighting its practical relevance.
Key mechanistic insights reveal that bromodifluoroacetates act as difluoroalkyl sources, delivering significant synthetic versatility.
Photochemical activation using visible light eliminates the need for external photocatalysts, streamlining the reaction process.
This catalyst-free approach enhances ease of use and expands the potential for utilizing simple substrates in organic synthesis.

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This photochemical method achieves efficient difluoroalkylacylation in alkenes, indicating broad applicability for producing various chroman-4-ones.

Jia et al. (2025) studied this question.

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This photochemical method achieves efficient difluoroalkylacylation in alkenes, indicating broad applicability for producing various chroman-4-ones.