期刊
ORGANIC CHEMISTRY FRONTIERS
卷 8, 期 24, 页码 6998-7003出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1qo01338f
关键词
-
资金
- National Natural Science Foundation of China [NNSFC 21871237]
An efficient enantioselective [3 + 2] annulation of alpha-hydroxy-1-indanones and alkylidene azlactones has been developed with chiral dinuclear zinc catalysts via a Bronsted base and Lewis acid cooperative activation model, allowing for the synthesis of a broad range of chiral alpha-amino-gamma-butyrolactones with three stereocenters in good yields and excellent diastereo- and enatiostereoselectivities.
An efficient enantioselective [3 + 2] annulation of alpha-hydroxy-1-indanones and alkylidene azlactones has been developed with chiral dinuclear zinc catalysts via a Bronsted base and Lewis acid cooperative activation model. This practical methodology gives access to a broad range of chiral alpha-amino-gamma-butyrolactones bearing three stereocenters in good yields with excellent diastereo- and enatiostereoselectivities (up to 88% yield, 20 : 1 dr, 99% ee). This transformation features broad functional group tolerance, gram-scale synthesis, and further prolongation with alpha-hydroxyacetophenone or 3-hydroxychroman-4-one.
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