The effect of substituents of immobilized Rh complexes on the asymmetric hydrogenation of acetophenone derivatives

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Abstract

Using a modified Augustine's method variously substituted Rh complexes were anchored on Al2O3 support. The prepared catalysts were characterized by spectroscopic methods and were applied in the hydrogenation of several acetophenone derivatives (p-CF3-acetophenone, acetophenone, p-NH2 -acetophenone). Enantioselective C=O hydrogenations were observed with reasonable activity and selectivity on all heterogenized complexes, e.e. up to 80%. At the same time the immobilized samples showed the advantages of the heterogeneous systems: easy handling and recyclability.

Original languageEnglish
Pages (from-to)549-554
Number of pages6
JournalCentral European Journal of Chemistry
Volume6
Issue number4
DOIs
Publication statusPublished - Sep 5 2008

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Keywords

  • Enantioselective
  • Hydrogenation
  • Immobilized
  • Rh complexes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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