title: Organocatalytic enantioselective direct vinylogous Michael addition of γ-substituted butenolides to 3-aroyl acrylates and 1,2-diaroylethylenes.
abstract: Adding value: The direct vinylogous Michael addition of γ-substituted butenolides with a series of 3-aroyl acrylates and 1,2-diaroylethylenes has been demonstrated. This organocatalytic method delivers highly enantio- and diastereomerically pure γ,γ-disubstituted butenolides with adjacent quaternary and tertiary stereocenters (see scheme).
authors: Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, ROC.
authors: Utpal
authors: U
authors: Das
authors: Yi-Ru
authors: YR
authors: Chen
authors: Yi-Ling
authors: YL
authors: Tsai
authors: Wenwei
authors: W
authors: Lin