Ni(II)-Mediated Photochemical Oxidative Esterification of Aldehydes with Phenols
Lu-Lu Chai, You-Hui Zhao, David James Young, Xinhua Lu, Hong‐Xi Li
Abstract
The photopromoted, Ni-catalyzed acceptorless dehydrogenation esterification of phenols and aromatic aldehydes has been achieved in an oxidant- and external photosensitizer-free manner. This reliable and atom-economical transformation was tolerant to a wide range of functional groups and proceeded efficiently to give various aryl benzoates in moderate to high yields. Additionally, this photocatalytic system displayed high activity for the hydrogen-evolution cross coupling of aliphatic aldehydes and phenols employing dual nickel and aromatic aldehyde catalysis.
Topics & Concepts
ChemistryPhenolsDehydrogenationCatalysisArylAldehydeBenzoatesOrganic chemistryPhotochemistryPhotocatalysisOxidative phosphorylationAlkylBiochemistryCatalytic C–H Functionalization MethodsRadical Photochemical ReactionsSulfur-Based Synthesis Techniques