Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (4): 761.

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Comparison of Catalytic Performance and Stability for Pt Catalysts Supported on Different Materials in Chiral Hydrogenation of Ethyl Pyruvate

WANG Hong-Na, SHEN Ya-Li, LI Bo, LI Xiao-Hong*, WU Peng   

  1. Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China
  • Received:2009-07-31 Online:2010-04-10 Published:2010-04-10
  • Contact: LI Xiao-Hong. E-mail: xhli@chem.ecnu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20703018)、国家“九七三”计划项目(批准号: 2006CB202508)和上海市科委青年科技启明星人才计划项目(批准号: 08QA1402700)资助.

Abstract:

5.0%(mass fraction) Pt catalysts supported on periodic mesoporous resols(FDU-14) and ordered mesoporous carbon materials(CMK-3) were prepared using a wet impregnation method, respectively. The ca-talytic performances of Pt/FDU-14 and Pt/CMK-3 catalysts in the asymmetric hydrogenation of ethyl pyruvate were compared with the commercial Pt/Al2O3 catalyst. Although the commercial Pt/Al2O3 catalyst affords the highest initial activity and enantioselectivity, the Pt/FDU-14 and Pt/CMK-3 catalysts are superior to Pt/Al2O3 in immobilization of platinum under the same conditions. Based on the chemical nature of different supports, the difference in the catalytic performance and stability of three supported Pt catalysts was interpreted for the enantioselective hydrogenation of ethyl pyruvate.

Key words: Pt/FDU-14 catalyst; Pt/CMK-3 catalyst; Ethyl pyruvate; Asymmetric hydrogenation; Leaching of platinum

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