Palladium supported on chitosan as a recyclable and selective catalyst for the synthesis of 2-phenyl ethanol

Dalton Trans. 2012 Mar 14;41(10):2910-7. doi: 10.1039/c2dt11924b. Epub 2012 Jan 20.

Abstract

Two different chitosan supported palladium based catalysts were prepared, wherein dispersed palladium nanoparticles were obtained via chemical reduction supported on chitosan (Pd/CTS) and amine functionalized modified chitosan (Pd/AFCTS). The catalytic activity of the Pd-based catalysts, Pd/CTS and Pd/AFCTS, were assessed in the hydrogenation of styrene oxide to 2-phenyl ethanol. Both Pd-based catalysts enhanced the formation of the desired 2-phenyl ethanol in contrast to a conventional Pd/C catalyst without the assistance of inorganic or organic base. A considerable influence on the conversion and selectivity was observed in the case of Pd/AFCTS, consisting of palladium nanoparticles stabilized and dispersed on amine-functionalized chitosan matrix, affording complete conversion of styrene oxide with 98% selectivity to 2-phenyl ethanol. The catalyst Pd/AFCTS has also been recycled without significant loss of activity and selectivity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Chemistry Techniques, Synthetic / methods*
  • Chitosan / chemistry*
  • Hydrogen / chemistry
  • Palladium / chemistry*
  • Phenylethyl Alcohol / chemical synthesis*
  • Pressure
  • Recycling
  • Solvents / chemistry
  • Substrate Specificity
  • Temperature

Substances

  • Solvents
  • Palladium
  • Hydrogen
  • Chitosan
  • Phenylethyl Alcohol