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Visible-Light-Induced, Base-Promoted Transition-Metal-Free Dehalogenation of Aryl Fluorides, Chlorides, Bromides, and Iodides

Ting‐Hui Ding, Jian‐Ping Qu, Yan‐Biao Kang

2020Organic Letters56 citationsDOI

Abstract

We report a simple and efficient visible-light-induced transition-metal-free hydrogenation of aryl halides. The combined visible light and base system is used to initiate the desired radical-mediated hydrogenation. A variety of aryl fluorides, chlorides, bromides, and iodides could be reduced to the corresponding (hetero)arenes with excellent yields under mild conditions. Various functional groups and other heterocyclic compounds are tolerated.

Topics & Concepts

ChemistryArylHalogenationHalideTransition metalBase (topology)Visible spectrumAryl radicalPhotochemistryMetalCatalysisOrganic chemistryAlkylOptoelectronicsMathematicsMathematical analysisPhysicsRadical Photochemical ReactionsSulfur-Based Synthesis TechniquesCatalytic C–H Functionalization Methods