Enantioselective Synthesis of Polysubstituted Cyclopentanones by Organocatalytic Double Michael Addition Reactions
作者:Anqi Ma、Dawei Ma
DOI:10.1021/ol101414b
日期:2010.8.20
diphenylprolinol-catalyzed cascade double Michael addition reactions of α,β-unsaturated aldehydes with a β-keto ester bearing a highly electron-deficient olefin unit occur smoothly to afford polysubstituted cyclopentanones. This process allows formation of four contiguous stereocenters in the cyclopentanone ring in one-step with excellent enantioselectivity.