Catalytic application of zwitterionic palladium complexes in Mizoroki-Heck reactions using ionic liquid as solvent

Yi Ping Wang, Hon Man Lee

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

New ligand precursors with different pendent alky chain length were obtained in a single step by reacting appropriate 1-alkyl-2-methyl-1H-imidazoles with chloroacetone in THF at 80°C overnight. Zwitterionic palladium complexes were prepared by reacting PdCl2 with these new imidazole derivatives in DMF with the presence of pyridine and Cs2CO3 as base at room temperature for 5 h. These new compounds were characterized by 1H and 13C{1H} NMR spectroscopy, elemental analysis, and electrospray ionization mass spectrometry. They were effectively applied as recyclable catalysts for mediating Mizoroki-Heck reactions in ionic liquids. Transmission emission microscopy revealed that palladium nanoparticles were formed during the catalytic process.

Original languageEnglish
Pages (from-to)90-98
Number of pages9
JournalJournal of Organometallic Chemistry
Volume791
DOIs
Publication statusPublished - 2015 Jun 4

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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