Synthesis, Characterization, and Reactivity of N-Heterocyclic Carbene Palladium(II) Hydroxide Dimers

Jonathan D. Egbert, Anthony Chartoire, Alexandra M. Z. Slawin, Steven P. Nolan

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

Palladium hydroxide dimers were prepared by reactions of CsOH with monomeric [Pd(NHC)(eta(3)-allyl)Cl] starting materials. The dimers represent species proposed as intermediates in important cross-coupling reactions. These complexes were tested for their catalytic activity in Suzuki-Miyaura coupling and Buchwald-Hartwig aryl amination. The hydroxide complexes were susceptible to hydrogenolysis on exposure to H-2 gas. Following H2O elimination and beta-hydride elimination of an additional cinnamyl ligand, a Pd(0) species is formed which can react with other available ligands.

Original languageEnglish
Pages (from-to)4494-4496
Number of pages3
JournalOrganometallics
Volume30
Issue number17
DOIs
Publication statusPublished - 12 Sept 2011

Keywords

  • CROSS-COUPLING REACTIONS
  • PINCER COMPLEXES
  • BUCHWALD-HARTWIG
  • SUZUKI-MIYAURA
  • BONDS
  • HYDROGENATION
  • MONONUCLEAR
  • HCL

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