Ag₃PO₄ enables the generation of long-lived radical cations for visible light-driven [2 + 2] and [4 + 2] pericyclic reactions.

ABSTRACT: Photocatalytic redox reactions are important for synthesizing fine chemicals from olefins, but the limited lifetime of radical cation intermediates severely restricts semiconductor photocatalysis efficiency. Here, we report that Ag₃PO₄ can efficiently catalyze intramolecular and intermolecular [2 + 2] and Diels-Alder cycloadditions under visible-light irradiation. The approach is additive-free, catalyst-recyclable. Mechanistic studies indicate that visible-light irradiation on Ag₃PO₄ generates holes with high oxidation power, which oxidize aromatic alkene adsorbates into radical cations. In photoreduced Ag₃PO₄, the conduction band electron (e_CB^-) has low reduction power due to the delocalization among t

SUBMITTER: Guo L 

PROVIDER: S-EPMC10834519 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature