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Asymmetric hydrogenation of methyl pyruvate using platinum carbonyl cluster supported on an anion exchanger as the catalyst

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Title Asymmetric hydrogenation of methyl pyruvate using platinum carbonyl cluster supported on an anion exchanger as the catalyst
 
Creator BHADURI, S
LAHIRI, GK
MUNSHI, P
MUKESH, D
 
Subject enantioselective hydrogenation
alpha-ketoesters
silica europt-1
cinchonidine
complexes
asymmetric
polymer-supported
heterogeneous
hydrogenation
catalysis
 
Description Anionic platinum carbonyl clusters supported on quaternary amine functionalized cross-linked polystyrene, i.e., anion exchangers, are effective precatalysts for the hydrogenation of methyl pyruvate to methyl lactate. Kinetic data has been obtained for anion exchangers with different quaternary groups. Highest observed rate constant and enantioselectivity are obtained with cinchonine funtionalized resin. The kinetic data also indicates saturation kinetics. The decarbonylated used catalyst could be recarbonylated to give a material spectroscopically (infrared) equivalent to freshly anchored cluster.
 
Publisher BALTZER SCI PUBL BV
 
Date 2011-07-18T21:56:26Z
2011-12-26T12:50:51Z
2011-12-27T05:37:00Z
2011-07-18T21:56:26Z
2011-12-26T12:50:51Z
2011-12-27T05:37:00Z
2000
 
Type Article
 
Identifier CATALYSIS LETTERS, 65(1-3), 61-66
1011-372X
http://dx.doi.org/10.1023/A:1019085809330
http://dspace.library.iitb.ac.in/xmlui/handle/10054/5084
http://hdl.handle.net/10054/5084
 
Language en