Visible Light Induced Reduction and Pinacol Coupling of Aldehydes and Ketones Catalyzed by Core/Shell Quantum Dots
Zi-Wei Xi, Lei Yang, Danyan Wang, Chuan-Wei Feng, Yufeng Qin, Yong‐Miao Shen, Chaodan Pu, Xiaogang Peng
Abstract
for the reduction to alcohol and pinacol formation, respectively, and are very stable so that they can be recycled for at least 10 times in the reactions without significant loss of catalytic activity. The additional advantages of this method include good functional group tolerance, mild reaction conditions, the allowance of selectively reducing aldehydes in the presence of ketones, and easiness for large scale reactions. Reaction mechanisms were studied by quenching experiments and a radical capture experiment, and the reasons for the switchover of the reaction pathways upon the change of reaction conditions are provided.
Topics & Concepts
ChemistryPinacolCatalysisPhotochemistryThiophenolQuenching (fluorescence)Quantum dotAlcoholAlcohol oxidationArylNanotechnologyOrganic chemistryAlkylFluorescencePhysicsQuantum mechanicsMaterials scienceRadical Photochemical ReactionsSulfur-Based Synthesis TechniquesCatalytic C–H Functionalization Methods