Journal
POLYMERS FOR ADVANCED TECHNOLOGIES
Volume 14, Issue 3-5, Pages 273-277Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/pat.305
Keywords
natural biopolymer; Wool-Rh complex; asymmetric hydrogenation; 2-methyl furan
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A Wool-Rh complex was prepared by the reaction of wool with RhCl(3)(.)3H(2)O in ethanol solution, and was found to be useful as a chiral catalyst for the asymmetric hydrogenation of 2-methyl furan to (S)-(+)-2-methyl tetrahydrofuran at 28 degreesC and under atmospheric hydrogen pressure. When an appropriate Rh content in the Wool-Rh complex was selected, the yield and optical yield amounted to 53.7 and 76.9%, respectively, and the Wool-Rh complex catalyst could be reused several times without any noticeable loss in its optical catalytic activity. Wool is a very cheap natural biopolymer ligand, and Wool-Rh complex is very easy to prepare, and it is a very active, enantioselective and stable chiral catalyst for asymmetric hydrogenation of 2-methyl furan. Copyright (C) 2003 John Wiley Sons, Ltd.
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