First Asymmetric Synthesis of Orthoquinone Monoketal Enantiomers via Anodic Oxidation
作者:Stéphane Quideau、Isabelle Fabre、Denis Deffieux
DOI:10.1021/ol048030k
日期:2004.11.1
An asymmetricsynthesis of orthoquinone monoketals was accomplished using anodic oxidation to convert aryl methylethers bearing a chiral ethanol unit into orthoquinone bisketals, followed by monohydrolysis of their dimethyl ketal unit. All four possible stereoisomers were generated in a diastereoselective manner by varying the attachment point of the chiral pro-ketal alcoholic auxiliary to the starting