Opticallyactive 2,5-disubstituted-cyclohexen-2-one derivatives have been prepared in a one-pot process consisting of five reaction steps: an organocatalytic asymmetric conjugated addition of beta-ketoesters to alpha,beta-unsaturated aldehydes that proceeds in aqueous solutions or under solvent-free conditions has been implemented in a multi-step process.
Synergistic Cu–amine catalysis for the enantioselective synthesis of chiral cyclohexenones
作者:A. Quintard、J. Rodriguez
DOI:10.1039/c5cc02987b
日期:——
An unprecedented utilization of 1,3-acetonedicarboxylic acid as a 1,3-bis-pro-nucleophile and a reactive acetone surrogate in enantioselective catalysis has been reported.