Photoredox/HAT dual-catalyzed carboxylation of benzyl chlorides with CO2 using thiophenolate and formate as reductants

Carboxylation of benzyl chlorides with CO2 has been developed with photoredox/HAT dual-catalysis. The reaction could be conducted at room temperature with blue LED light source. Potassium formate (HCO2K) is used as a green reductant and a catalytic amount of sodium thiophenolate (PhSNa) is applied a...

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Bibliographic Details
Published in:Tetrahedron Green Chem
Main Authors: Zhengning Fan, Yaping Yi, Chanjuan Xi
Format: Article
Language:English
Published: Elsevier 2023-12-01
Subjects:
Carbon dioxide: carboxylation: photoredox catalysis
Online Access:http://www.sciencedirect.com/science/article/pii/S2773223123000274
Description
Summary:Carboxylation of benzyl chlorides with CO2 has been developed with photoredox/HAT dual-catalysis. The reaction could be conducted at room temperature with blue LED light source. Potassium formate (HCO2K) is used as a green reductant and a catalytic amount of sodium thiophenolate (PhSNa) is applied as the HAT reagent. Strongly reductive carbon dioxide radical anion (CO2‧–) is produced to promote the cleavage of C–Cl bond.
ISSN:2773-2231

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