Palladium-catalyzed cross-methylation of aryl triflates by intramolecularly stabilized dialkyl-aluminum, -gallium and -indium reagents

Jochanan Blum*, Judith A. Katz, Nimer Jaber, Michael Michman, Herbert Schumann, Stefan Schutte, Jens Kaufmann, Birgit C. Wassermann

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Several phenyl and naphthyl triflates undergo catalytic cross-methylation with the monomeric and dimeric dimethyl-aluminum, -gallium and -indium complexes 1a, 1b, 1c, 3a, 3b and 3c in the presence of either PdCl2(PPh3)2, Pd(PPh3)4 or Pd(binap)(OAc)2. 4-Bromophenyl triflate reacts selectively via the triflate function. Structural features of the substrate and the methylating agent, as well as the nature and quality of the palladium catalyst have a considerable influence on the cross-coupling process.

Original languageEnglish
Pages (from-to)97-102
Number of pages6
JournalJournal of Molecular Catalysis A: Chemical
Volume165
Issue number1-2
DOIs
StatePublished - 8 Jan 2001

Keywords

  • Aluminum
  • Aryl triflates
  • Cross-coupling
  • Gallium
  • Indium
  • Palladium catalysts

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