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Asymmetric hydrogenation of ketones catalyzed by silica‐supported chitosan‐iron‐nickel complex
Author(s) -
Zhou DaQing,
Zhou DeJun,
Cui XiaoHua,
Wang FuMing,
Huang MeiYu,
Jiang YingYan
Publication year - 2004
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.442
Subject(s) - propiophenone , catalysis , acetophenone , chitosan , nickel , biopolymer , materials science , ethanol , metal , asymmetric hydrogenation , organic chemistry , nuclear chemistry , polymer chemistry , enantioselective synthesis , chemistry , metallurgy , ketone , polymer
Abstract A new silica‐supported biopolymer‐metal complex, silica‐supported chitosan‐iron‐nickel complex was prepared by a very simple method. This complex catalyst can be used as a catalyst in the asymmetric hydrogenation of propiophenone to ( R )‐(+)‐1‐phenyl‐1‐propanol and acetophenone to ( R )‐(+)‐1‐phenyl ethanol in 91.7 and 77.7% optical yields, respectively, at 110°C and under 70 kg/cm 2 pressure. The catalyst could be reused several times without any remarkable change in the catalytic activity. Copyright © 2004 John Wiley & Sons, Ltd.