Preparation of silica‐supported alginic acid‐ L ‐glutamic acid–Pt complex and its catalytic behaviors in asymmetric hydrogenation of 4‐methyl‐2‐pentanone | Zendy

Xue Lei | Zendy; Li BaoYu | Zendy; Huang MeiYu | Zendy; Jiang YingYan | Zendy

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Preparation of silica‐supported alginic acid‐ L ‐glutamic acid–Pt complex and its catalytic behaviors in asymmetric hydrogenation of 4‐methyl‐2‐pentanone

Author(s) -

Xue Lei,

Li BaoYu,

Huang MeiYu,

Jiang YingYan

Publication year - 2003

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.307

Subject(s) - alginic acid , catalysis , yield (engineering) , molar ratio , solvent , materials science , asymmetric hydrogenation , polymer , metal , organic chemistry , nuclear chemistry , polymer chemistry , chemistry , enantioselective synthesis , biochemistry , metallurgy

A new chiral polymer–metal complex, silica‐supported alginic acid‐ L ‐glutamic acid–Pt complex (SiO 2 ‐AA‐ L ‐Glu‐Pt), has been prepared by a very simple method and has been found to be able to catalyze the asymmetric hydrogenation of 4‐methyl‐2‐pentanone to give (R)‐(−)‐4‐methyl‐2‐pentanol in 90.8% optical yield at 30 °C and under 1 atm H 2 . The product and optical yields were greatly affected by the Pt content in the complex, the solvent, the 4‐methyl‐2‐pentanone/Pt molar ratio and the reaction temperature. The catalyst could be reused several times without any great change in its optical catalytic activity. Copyright © 2003 John Wiley & Sons, Ltd.

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