Solution pH: A selectivity switch in aqueous organometallic catalysis - Hydrogenation of unsaturated aldehydes catalyzed by sulfonatophenylphosphane-Ru complexes

Ferenc Joó, József Kovács, Attila Cs Bényei, Ágnes Kathó

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The equilibribrium distribution of water-soluble ruthenium hydrides [HRuCl(tppms)3] and [H2Ru(tppms)4] (tppms = (3-sulfonatophenyl]diphenyl-phosphane) in the reaction with H2 is governed by the pH value. As a consequence, the selectivity in the hydrogenation of cinnamaldehyde for reaction at C=C or C=O can be completely inverted by changing the pH value.

Original languageEnglish
Pages (from-to)969-970
Number of pages2
JournalAngewandte Chemie - International Edition
Issue number7
Publication statusPublished - Jan 1 1998



  • Aldehydes
  • Biphasic catalysis
  • Homogeneous catalysis
  • Hydrogenations
  • Ruthenium
  • Two-phase catalysis

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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