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Highly Enantioselective 1,4‐Addition of Diethyl Phosphite to Enones Using a Dinuclear Zn Catalyst
Authors:Depeng Zhao  Ye Yuan Dr.  Albert S. C. Chan Prof.  Rui Wang Prof.
Affiliation:1. State Key Laboratory of Applied Organic Chemistry and Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000 (China), Fax: (+86)?931‐891‐2567;2. Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University (Hong Kong)
Abstract:Zinc benefits : The first catalytic asymmetric phospha‐Michael addition of enones has been developed. Under mild reaction conditions, the γ‐oxo phosphonates could be obtained in high yields (up to 99 %) with excellent enantioselectivities (93–99 % ee; see scheme). The strategy makes the asymmetric synthesis of biologically important phosphonate compounds more accessible.
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Keywords:asymmetric catalysis  enones  hydrophosphosphonylation  Michael addition  phosphonates
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