Double carbonylation of iodoarenes in the presence of reusable palladium catalysts immobilised on supported phosphonium ionic liquid phases

Béla Urbán, Péter Szabó, Dávid Srankó, G. Sáfrán, L. Kollár, R. Skoda-Földes

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The first heterogeneous carbonylation reaction carried out with palladium catalysts immobilised on phosphonium ion modified silica supports is reported. The supported ionic liquid phases were characterised by solid state NMR and FT-IR measurements. The presence of the phosphonium ions on the surface made it possible to carry out double carbonylation in apolar toluene efficiently that resulted in reduced metal leaching. The introduction of dicationic moieties on the solid support has been proved to lead to a further increase in catalyst stability. The catalysts were proved to produce α-ketoamide products with excellent selectivity in the carbonylation of iodoarenes with aliphatic amines while monocarbonylation was the only reaction observed with aniline derivatives. The catalysts could be recycled and used in at least 10 subsequent runs under optimised conditions.

Original languageEnglish
Pages (from-to)195-205
Number of pages11
JournalMolecular Catalysis
Volume445
DOIs
Publication statusPublished - Feb 1 2018

Keywords

  • Carbonylation
  • Heterogeneous catalysis
  • Immobilisation
  • Palladium
  • Supported catalysts

ASJC Scopus subject areas

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

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