Diastereo- and Enantioselective Tandem Michael Addition and Lactonization between Silyl Enolates and α,β-Unsaturated Ketones Catalyzed by a Chiral Quaternary Ammonium Phenoxide
Diastereo- and enantioselective tandem Michaeladdition and lactonization between various silyl enolates derived from phenyl carboxylates and α,β-unsaturatedketones were successfully carried out b...