Asymmetric Deoxygenative Cyanation of Benzyl Alcohols Enabled by Synergistic Photoredox and Copper Catalysis<sup>†</sup>
Hongwei Chen, Fu‐Dong Lu, Ying Cheng, Yue Jia, Liang‐Qiu Lu, Wen‐Jing Xiao
Abstract
Summary of main observation and conclusion An enantioselective deoxygenative cyanation of benzyl alcohols was accomplished for the first time through the synergistic photoredox and copper catalysis. This reaction features the use of organic photosensitizer and low‐cost 3d metal catalyst, simple and safe operations, and extremely mild conditions. A variety of chiral benzyl nitriles were produced in generally good yields and high level of enantiocontrols from readily available feedstocks (22 examples, up to 93% yield and 92% ee).
Topics & Concepts
CyanationChemistryCatalysisYield (engineering)CopperEnantioselective synthesisOrganic chemistryPhotoredox catalysisCombinatorial chemistryPhotosensitizerMetalPhotocatalysisMaterials scienceMetallurgyCatalytic C–H Functionalization MethodsRadical Photochemical ReactionsSynthesis and Catalytic Reactions