Visible-Light-Induced Oxidative Coupling of Phenols and Alkenylphenols with a Recyclable, Solid Photocatalyst
Jingze Wu, Marisa C. Kozlowski
Abstract
A photocatalytic method for phenol and alkenylphenol oxidative coupling is reported using an inexpensive heterogeneous titanium dioxide photocatalyst with air and visible light. During the coupling process, the Ti–substrate complex is activated under visible light through a ligand to metal charge transfer effect, and the diphenol adduct is proposed to form through a radical cation. The heterogeneous TiO 2 catalyst remains stable throughout the reaction and can be easily removed and reused multiple times.
Topics & Concepts
ChemistryPhotocatalysisOxidative coupling of methanePhenolsOxidative phosphorylationCoupling (piping)Visible spectrumPhotochemistryChemical engineeringCombinatorial chemistryOrganic chemistryOptoelectronicsCatalysisComposite materialMaterials scienceBiochemistryEngineeringRadical Photochemical ReactionsSulfur-Based Synthesis TechniquesCatalytic C–H Functionalization Methods