Chinese Journal of Catalysis ›› 2011, Vol. 32 ›› Issue (8): 1312-1322.DOI: 10.1016/S1872-2067(10)60249-5

• Research papers • Previous Articles     Next Articles

Liquid Phase Hydrogenation of Benzalacetophenone: Effect of Solvent, Catalyst Support, Catalytic Metal and Reaction Conditions

Achim STOLLE1,*, Christine SCHMÖGER1, Bernd ONDRUSCHKA1, Werner BONRATH2, Thomas F. KELLER3, Klaus D. JANDT3   

  1. 1Institute for Technical Chemistry and Environmental Chemistry (ITUC), Friedrich-Schiller University Jena, Lessingstrasse 12, D-07743 Jena, Germany; 2R&D Chemical Process Technology, DSM Nutritional Products, P.O. Box 2676, CH-4002 Basel, Switzerland; 3Institute of Materials Science and Technology (IMT), Friedrich-Schiller University Jena, Löbdergraben 32, D-07743 Jena, Germany
  • Received:2011-03-23 Revised:2011-05-02 Online:2011-08-05 Published:2014-12-26

Abstract: Innovative catalysts based on a “porous glass” support material were developed and investigated for the reduction of benzalacetophenone. The easy preparation conditions and possibility to use different metals (e.g. Pd, Pt, Rh) for impregnation gave a broad variety of these catalysts. Hydrogenation experiments with these supported catalysts were carried out under different hydrogen pressures and temperatures. Porous glass catalysts with Pd as the active component gave chemoselective hydrogenation of benzalacetophenone, while Pt- and Rh-catalysts tended to further reduce the carbonyl group, especially at elevated hydrogen pressures and temperatures. Kinetic analysis of the reactions revealed these had zero order kinetics, which was independent of the type of porous glass support and solvent used.

Key words: chalcone, hydrogenation, porous glass, supported catalyst