title: Noncovalent immobilization of ionic-tagged box-Cu(OAc)2 complex and its application in asymmetric Henry reaction.
abstract: Immobilized Cu(OAc)(2)-bis(oxazolines) via hydrogen bonding by SBA-15 was applied to asymmetric Henry reaction, and good enantioselectivities were obtained (up to 83% ee) between 2-methoxybenzaldehyde and CH(3)NO(2) in isopropyl alcohol (iPrOH). The catalyst could be reused seven times without any obvious loss in enantioselectivity. For the first time, this facile and clean immobilization method is applied to the use of bis(oxazolines) complexes.
authors.affiliation: R&D Centre for Pharmaceuticals, School of Chemical Engineering and Environment, Beijing Institute of Technology, People's Republic of China.
authors.forename: Zhi-Huai
authors.initials: ZH
authors.lastname: Li
authors.forename: Zhi-Ming
authors.initials: ZM
authors.lastname: Zhou
authors.forename: Xiao-Yan
authors.initials: XY
authors.lastname: Hao
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.forename: Xiao
authors.initials: X
authors.lastname: Dong
authors.forename: Ying-Qiang
authors.initials: YQ
authors.lastname: Liu
mesh_terms: D001547:Benzaldehydes / Q000737:chemistry; D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D006860:Hydrogen Bonding; D008697:Methane / Q000031:analogs & derivatives / Q000737:chemistry; D009595:Nitroparaffins / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D001547:Benzaldehydes; D009595:Nitroparaffins; D009942:Organometallic Compounds; C509969:SBA-15; D012822:Silicon Dioxide; D003300:Copper; D008697:Methane; C008640:nitromethane; C032175:benzaldehyde