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Citation: ZHOU Chao, LU Wei-Min, XIA Yun-Chao. Synthesis of Chiral Schiff-base-Cu(Ⅱ) and -VO(Ⅱ) Complexes and Their Application in Enantioselective Oxidative Coupling[J]. Chinese Journal of Applied Chemistry, ;2005, 22(2): 142-147. shu

Synthesis of Chiral Schiff-base-Cu(Ⅱ) and -VO(Ⅱ) Complexes and Their Application in Enantioselective Oxidative Coupling

1.
Institute of Catalysis, Zhejiang University(Xixi Campus), Hangzhou 310028

Corresponding author: LU Wei-Min,
Received Date: 27 March 2004
Available Online: 10 June 2004

Five amino-acid Schiff bases and their corresponding Cu(Ⅱ) complexes as well as D-glucosamine Schiff bases and their corresponding V(Ⅳ) complexes were synthesized and characterized by means of elemental analysis, infrared absorption spectra, ¹H NMR and TG. The catalytic activities of the complexes in the enantioselective oxidative couplings of β-napthol to BINOL were studied. The best result of yield and e.e. value are 81.7% and 28.4% for the Cu catalyst and 87.5% and 60.3% for the V catalyst. Experimental results show that the optical activity of the product was affected greatly by the coordination structure of the center ions.
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