Abstractmagnified imageA proline‐derived aminohydroxyphosphine ligand induced excellent regio‐ and enantioselectivities (SN2′:SN2>94:6, 94–97% ee) in the copper‐catalyzed substitution reaction of cinnamyl phosphates with Et2Zn. A computational modelling study of the reaction pathway suggests that the displacement of the leaving group takes place in an ordered, anti‐fashion through simultaneous copper–olefin and zinc–oxygen interactions, which is critical for the enantioselection.
Abstractmagnified imageA proline‐derived aminohydroxyphosphine ligand induced excellent regio‐ and enantioselectivities (SN2′:SN2>94:6, 94–97% ee) in the copper‐catalyzed substitution reaction of cinnamyl phosphates with Et2Zn. A computational modelling study of the reaction pathway suggests that the displacement of the leaving group takes place in an ordered, anti‐fashion through simultaneous copper–olefin and zinc–oxygen interactions, which is critical for the enantioselection.
Abstractmagnified imageA proline‐derived aminohydroxyphosphine ligand induced excellent regio‐ and enantioselectivities (SN2′:SN2>94:6, 94–97% ee) in the copper‐catalyzed substitution reaction of cinnamyl phosphates with Et2Zn. A computational modelling study of the reaction pathway suggests that the displacement of the leaving group takes place in an ordered, anti‐fashion through simultaneous copper–olefin and zinc–oxygen interactions, which is critical for the enantioselection.
Enantioselective Copper-Catalyzed Allylic Substitution Reaction with Aminohydroxyphosphine Ligand
作者:Naohiko Yoshikai、Kotaro Miura、Eiichi Nakamura
DOI:10.1002/adsc.200900054
日期:2009.5
Abstractmagnified imageA proline‐derived aminohydroxyphosphine ligand induced excellent regio‐ and enantioselectivities (SN2′:SN2>94:6, 94–97% ee) in the copper‐catalyzed substitution reaction of cinnamyl phosphates with Et2Zn. A computational modelling study of the reaction pathway suggests that the displacement of the leaving group takes place in an ordered, anti‐fashion through simultaneous copper–olefin and zinc–oxygen interactions, which is critical for the enantioselection.