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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

  • Aydın AktaşEmail author
  • Duygu Barut Celepci
  • Yetkin Gök
Regular Article
  • 52 Downloads

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 1H NMR, 13C 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.

Graphical abstract

Here, 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. All the complexes have been characterized by using 1H NMR, 13C 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.

Keywords

Bis(NHC)Pd(II) complex butylfuran butylthiophene direct arylation N-coordinate-Pd(II)(NHC) complexes N-heterocyclic carbene 

Notes

Acknowledgements

The authors acknowledge Dokuz Eylul University for the use of the Oxford Rigaku Xcalibur Eos Diffractometer (purchased under University Research Grant No: 2010.KB.FEN.13). The authors thank the Inonu University Faculty of Science Department of Chemistry for the spectroscopy and characterization of compounds.

Compliance with ethical standards

Conflicts of interest

There are no conflicts of interest to declare.

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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  1. 1.Faculty of Science, Department of Chemistryİnönü UniversityMalatyaTurkey
  2. 2.Faculty of Sciences, Department of PhysicsDokuz Eylül UniversityBucaTurkey

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