Abstract
AbstractZeolite‐supported gelatin–cobalt–ruthenium complex (zeo–gelatin–Co–Ru) was prepared by a simple method, first the zeolite and gelatin (chiral natural bio‐polymer) were mixed to give zeolite‐supported gelatin (zeo–gelatin), then this was used as a polymer ligand to react with CoCl2·6H2O and RuCl3·H2O to form the complex. This complex has been found to catalyze the asymmetric hydroformylation of vinyl acetate to give (R)‐2‐acetoxy‐propanal in 83.4% product yield and 90.9% optical yield. And this catalyst could be reused several times without any considerable change in the optical yield. Copyright © 2001 John Wiley & Sons, Ltd.
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