Asymmetric Synthesis of 3,3-Disubstituted Isoindolinones Enabled by Organocatalytic Functionalization of Tertiary Alcohols
作者:Bin Mao、Jin-Long Wang
DOI:10.1055/s-0040-1720040
日期:2022.12
An enantioselective intramolecular heterocyclization with in situ generated 3-hydroxyisoindolinone-derived N-acyliminium ions has been successfully accomplished. In the presence of a catalytic amount of a chiral phosphoric acid, functionalized 3,3-disubstituted isoindolinones bearing N-acyl-N,O-acetal moieties were obtained with good yields and a high level of stereocontrol (up to 98:2 er). This efficient