Synthesis of Sterically Hindered α-Hydroxycarbonyls through Radical–Radical Coupling
作者:Kenji Ota、Kazunori Nagao、Hirohisa Ohmiya
DOI:10.1021/acs.orglett.1c01358
日期:2021.6.4
describe a synthetic approach to sterically hindered α-hydroxy carbonyl compounds through radical–radical coupling. An organic photoredox catalysis reaction converts an aliphatic carboxylic acid and α-ketocarbonyl to a transient alkyl radical and a persistent ketyl radical, respectively, which couple selectively based on the persistent radical effect. This protocol allows the use of primary, secondary, and