Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20564
Title: Enantioselective hydrogenation of ethyl pyruvate catalyzed by polyvinylpyrrolidone-stabilized and supported rhodium nanocluster
Authors: Huang, Y
Li, Y
Hu, J
Cheng, P
Chen, H
Li, R
Li, X
Yip, CW
Chan, ASC
Keywords: Cinchonidine
Enantioselective hydrogenation
Ethyl pyruvate
Nanocluster
Rhodium
Issue Date: 2002
Publisher: Elsevier Science Bv
Source: Journal of molecular catalysis a : chemical, 2002, v. 189, no. 2, p. 219-224 How to cite?
Journal: Journal of Molecular Catalysis A: Chemical 
Abstract: The enantioselective hydrogenation of ethyl pyruvate catalyzed by finely dispersed oxide supported rhodium nanocluster was studied with cinchonidine as chiral modifier. The results indicated that cinchonidine not only exhibited good enantiodifferentiating ability but also could accelerate the reaction by a factor 10. Supports (γ-Al2O3, SiO2, TiO2) played an important role in promoting the further increase of catalytic activity and enantioselectivity of polyvinylpyrrolidone-stabilized rhodium nanoclusters (Rh/PVP). Under the optimum reaction conditions (298 K, 7.0 MPa of hydrogen pressure and tetrahydrofuran as solvent), TOF and the enantiomeric excess reached 58.6 min-1 and 65.4% e.e., respectively.
URI: http://hdl.handle.net/10397/20564
ISSN: 1381-1169
DOI: 10.1016/S1381-1169(01)00295-3
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