Title: Synthesis of Chiral Schiff-base-Cu(II) and -VO(II) Complexes and Their Application in Enantioselective Oxidative Coupling
Abstract: 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.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot