title: Dinuclear Ni2-Schiff base complex-catalyzed asymmetric 1,4-addition of β-keto esters to nitroethylene toward γ(2,2)-amino acid synthesis.
abstract: A homodinuclear Ni(2)-Schiff base 1 complex (1-10 mol%) promoted the catalytic asymmetric 1,4-addition reactions of β-keto esters and an N-Boc oxindole to nitroethylene, giving products in 98-75% ee.
authors.affiliation: Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
authors.forename: Harunobu
authors.initials: H
authors.lastname: Mitsunuma
authors.forename: Shigeki
authors.initials: S
authors.lastname: Matsunaga
mesh_terms: D002384:Catalysis; D004952:Esters / Q000737:chemistry*; D005030:Ethylenes / Q000138:chemical synthesis* / Q000737:chemistry; D007659:Ketones / Q000737:chemistry; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009574:Nitro Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry*; D012545:Schiff Bases / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D004952:Esters; D005030:Ethylenes; D007659:Ketones; D009574:Nitro Compounds; D009942:Organometallic Compounds; D012545:Schiff Bases; D009532:Nickel