Recoverable palladium catalysts for Suzuki-Miyaura cross-coupling reactions based on organic-inorganic hybrid silica materials containing imidazolium and dihydroimidazolium salts

Montserrat Trilla, Guadalupe Borja, Roser Pleixats, Michel Wong Chi Man, Catherine Bied, Joël J.E. Moreau

Research output: Contribution to journalArticleResearchpeer-review

44 Citations (Scopus)

Abstract

The systems formed by palladium acetate [Pd(OAc)2] and hybrid silica materials prepared by sol-gel from monosilylated imidazolium and disilylated dihydroimidazolium salts show catalytic activity in Suzuki-Miyaura cross-couplings with challenging aryl bromides and chlorides. They are very efficient as recoverable catalysts with aryl bromides. Recycling is also possible with aryl chlorides, although with lower conversions. In situ formation of palladium nanoparticles has been observed in recycling experiments. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
Original languageEnglish
Pages (from-to)2566-2574
JournalAdvanced Synthesis and Catalysis
Volume350
Issue number16
DOIs
Publication statusPublished - 3 Nov 2008

Keywords

  • Catalyst recycling
  • Nanoparticles
  • Organic-inorganic hybrid composites
  • Palladium
  • Sol-gel processes
  • Suzuki-Miyaura reaction

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