Novel 2-hydroxyethyl substituted N-coordinate-Pd(II)(NHC) and bis(NHC)Pd(II) complexes: Synthesis, characterization and the catalytic activity in the direct arylation reaction

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Aktaş A., Barut Celepci D., Gök Y.

JOURNAL OF CHEMICAL SCIENCES, vol.131, no.8, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 131 Issue: 8
  • Publication Date: 2019
  • Doi Number: 10.1007/s12039-019-1657-y
  • Journal Name: JOURNAL OF CHEMICAL SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Bis(NHC)Pd(II) complex, butylfuran, butylthiophene, direct arylation, N-coordinate-Pd(II)(NHC) complexes, N-heterocyclic carbene, N-HETEROCYCLIC CARBENE, DIRECT C5 ARYLATION, H BOND ARYLATION, CRYSTAL-STRUCTURE, CARBONIC-ANHYDRASE, PALLADIUM(II) COMPLEXES, INHIBITORY PROPERTIES, PRECURSORS SYNTHESIS, LIGANDS, CHEMISTRY
  • Dokuz Eylül University Affiliated: Yes

Abstract

The direct arylation reaction has attracted attention in recent years especially because of its environment-friendly properties. In this study, we researched the synthesis of 2-hydroxyethyl substituted bis(NHC)Pd(II) complexes and also the synthesis of N-coordinate-Pd(II)(NHC) complexes containing N-bound benzimidazolium from palladium acetate ([Pd(CH3COO)(2)]) with 1,3-disubstituted benzimidazolium halides in DMSO. All the complexes have been characterized by using H-1 NMR, C-13 NMR, FTIR spectroscopy and elemental analysis techniques. The molecular and crystal structure of one of the complexes is confirmed by using single-crystal X-ray diffraction. These complexes have been examined as the catalyst in the direct arylation reaction with 2-n-butylfuran and 2-n-butylthiophene and have demonstrated excellent activity in this reaction.