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

Chemistry

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

L. Guo, R. Chu, et al.

Discover how Ag₃PO₄ acts as a remarkable catalyst for both intramolecular and intermolecular [2+2] and Diels-Alder cycloadditions, utilizing visible-light irradiation. This groundbreaking research by Lirong Guo and colleagues presents an innovative, additive-free method that generates long-lived radical cations, showcasing the potential of inorganic semiconductors for radical cation-mediated synthesis powered by sunlight.

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Playback language: English
Abstract
This research demonstrates that Ag₃PO₄ efficiently catalyzes intramolecular and intermolecular [2+2] and Diels-Alder cycloadditions under visible-light irradiation. The additive-free, catalyst-recyclable approach generates long-lived radical cations (lifetime >2ms) through visible light excitation of Ag₃PO₄, oxidizing aromatic alkene adsorbates. The stability of these radical cations is attributed to the low reduction power of conduction band electrons and strong electrostatic interaction with the particle surfaces. This work highlights the potential of inorganic semiconductors for sunlight-driven radical cation-mediated synthesis.
Publisher
Nature Communications
Published On
Feb 01, 2024
Authors
Lirong Guo, Rongchen Chu, Xinyu Hao, Yu Lei, Haibin Li, Dongge Ma, Guo Wang, Chen-Ho Tung, Yifeng Wang
Tags
Ag₃PO₄
catalysis
cycloaddition
visible-light irradiation
radical cations
inorganic semiconductors
synthesis

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