Direct Oxygenation of C–H Bonds through Photoredox and Palladium Catalysis
Sk. Sheriff Shah, Maniklal Shee, Amit Kumar Singh, Amrita Paul, N. D. Pradeep Singh
Abstract
This report presents the oxygenation of C–H bonds via the merger of photocatalysis and Pd catalysis. Herein, we describe the utilization of a photocatalyst to oxidize an organopalladium(II) intermediate to high-valent PdIII or PdIV intermediates, which promotes the formation of C–O bonds. The demonstrated method works efficiently with various directing groups, such as oxime ether and benzothiazole. The applicability of this direct C–O bond formation method is shown by synthesizing several metal complexes of 2-(benzo[d]thiazol-2-yl)phenol that can be used in organic light-emitting diodes and pharmaceuticals.
Topics & Concepts
ChemistryPalladiumPhotoredox catalysisOxygenationCatalysisPhotochemistryOrganic chemistryPhotocatalysisBiologyEcologyCatalytic C–H Functionalization MethodsRadical Photochemical ReactionsSynthesis and Catalytic Reactions