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Synthesis and Application of Polystyrene Nanospheres Supported Platinum Catalysts in Enantioselective Hydrogenations

Abstract

Nearly monodisperse polystyrene nanospheres coated with platinum have been synthesized and applied successfully in the cinchona alkaloid-modified enantioselective hydrogenation of ethyl pyruvate. During the catalyst preparation broadly varied experimental conditions were used resulting in several catalysts with different properties. The effect of hydrogen pressure, solvent, modifier and polystyrene nanoparticle size on the enantioselectivity was also studied. Based on the results the effect of support on the mechanism of the enantiodifferentiation has been discussed.

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Acknowledgments

Financial support provided by the ACS-Petroleum Research Fund, the University of Massachusetts Boston and Michigan Technological University is highly appreciated.

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Correspondence to Béla Török.

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Török, B., Kulkarni, A., DeSousa, R. et al. Synthesis and Application of Polystyrene Nanospheres Supported Platinum Catalysts in Enantioselective Hydrogenations. Catal Lett 141, 1435–1441 (2011). https://doi.org/10.1007/s10562-011-0672-5

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  • DOI: https://doi.org/10.1007/s10562-011-0672-5

Keywords

  • Platinum
  • Polystyrene nanospheres
  • Cinchona alkaloids
  • Ethyl pyruvate
  • Hydrogenation
  • Enantioselective
  • Heterogeneous