Hydroformylation of styrene in the presence of rhodium-2,4,6-trialkylphenyl-phosphole in situ catalytic systems

György Keglevich, Tamás Kégl, Tungalag Chuluunbaatar, Beáta Dajka, Péter Mátyus, Balázs Balogh, László Kollár

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28 Citations (Scopus)

Abstract

The hydroformylation of styrene was carried out in the presence of in situ rhodium catalysts containing 1-arylphospholes with different substituents in position 2 or 3. The aryl substituents were varied from phenyl to different sterically hindered 2,4,6-trialkylphenyls. The structures and Bird-indices (BIs) of the phospholes with different steric and electronic properties were determined by DFT calculations. High chemoselectivities towards hydroformylation, as well as regioselectivities towards the branched formyl regioisomer (2-phenyl-propanal) were obtained at a temperature of 40 °C. Similarly, high chemoselectivity was accompanied by a decreased regioselectivity at 100 °C. The phospholes with an exocyclic P-function in position 2 or 3 showed higher catalytic activity.

Original languageEnglish
Pages (from-to)131-136
Number of pages6
JournalJournal of Molecular Catalysis A: Chemical
Volume200
Issue number1-2
DOIs
Publication statusPublished - Jun 2 2003

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Keywords

  • Aromaticity
  • Arylphospholes
  • DFT calculations
  • Hydroformylation
  • Rhodium-complexes

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology
  • Physical and Theoretical Chemistry

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