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Asymmetric Construction of Spirooxindoles by Organocatalytic Multicomponent Reactions Using Diazooxindoles
Authors:Ming‐Yue Wu  Wei‐Wei He  Xin‐Yuan Liu  Bin Tan
Abstract:The first highly diastereo‐ and enantioselective multicomponent reaction of diazooxindoles, nitrosoarenes, and nitroalkenes using a newly developed hydrogen‐bond catalyst has been successfully developed for the efficient construction of a series of spirooxindole derivatives with excellent functional‐group tolerance. Spirooxindoles are formed in excellent yields and stereoselectivities, and the method represents an unprecedented approach for trapping the active intermediate with a nitroalkene to form biologically important compounds having three contiguous stereogenic centers with excellent asymmetric induction.
Keywords:Diazoverbindungen  Enantioselektivitä  t  Heterocyclen  Mehrkomponentenreaktionen  Organokatalyse
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