作者:Seunghwan Byun、Meemie U. Hwang、Henry R. Wise、Anna V. Bay、Paul H.‐Y. Cheong、Karl A. Scheidt
DOI:10.1002/anie.202312829
日期:2023.12.4
An enantioselective radical-radical coupling using combined photoredox/N-heterocyclic carbene (NHC) catalysis was developed. The coupling of a ketyl radical and an sp3-carbon radical allows access to α-chiral ketones in moderate-to-good yields and enantioselectivities. Computational investigations reveal the N-heterocyclic carbene controls the double-facial selectivity of the ketyl radical and the
开发了一种使用光氧化还原/ N-杂环卡宾(NHC)组合催化的对映选择性自由基-自由基偶联。羰基和sp 3 -碳自由基的偶联可以以中等至良好的产率和对映选择性获得 α-手性酮。计算研究表明N-杂环卡宾分别控制羰基和烷基的双面选择性。