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    • 8. 发明授权
    • Copper complex
    • 铜复合体
    • US4029683A
    • 1977-06-14
    • US645541
    • 1975-12-29
    • Tadatoshi ArataniShuzo NakamuraTsuneyuki NagaseYukio Yoneyoshi
    • Tadatoshi ArataniShuzo NakamuraTsuneyuki NagaseYukio Yoneyoshi
    • C07F1/08
    • A copper complex coordinated with a Schiff base is provided herein, which complex is especially advantageous to catalyze the asymmetric synthesis of alkyl chrysanthemates. The specific complex of the present invention is a copper complex coordinated with a chiral Schiff base of the formula: ##STR1## wherein C* is an asymmetric carbon atom, R.sup.1 is selected from (a) alkyl groups whose carbon atom number is 1-10, and (b) aralkyl groups with or without alkoxy substituent(s), whose total carbon atom number is 7-20, R.sup.2 is selected from aryl groups with alkoxy substituent(s), whose total carbon atom number is 7-30, X is selected from (a) hydrogen, (b) alkyl groups having 1-10 carbon atoms, (c) a phenyl group, (d) alkoxy groups having 1-10 carbon atoms, (e) halogen atoms, (f) nitro, or X is benzo which together with the ring to which it is attached forms a naphthalene ring, and Y is a hydrogen atom.
    • 本文提供了与席夫碱配位的铜络合物,该络合物特别有利于催化烷基菊酸酯的不对称合成。 本发明的具体络合物是与下式的手性席夫碱配位的铜络合物:其中C *是不对称碳原子,R1选自(a)碳原子数为1-10的烷基 ,和(b)具有或不具有烷氧基取代基的芳烷基,其总碳原子数为7-20,R2选自具有烷氧基取代基的芳基,其总碳原子数为7-30,X 选自(a)氢,(b)具有1-10个碳原子的烷基,(c)苯基,(d)具有1-10个碳原子的烷氧基,(e)卤素原子,(f)硝基, 或X为苯并
      与与其连接的环一起形成萘环,Y为氢原子。