2-hydroxyethyl-substituted (NHC)PdI2(pyridine) (Pd-PEPPSI) Complexes: Synthesis, Characterization and the Catalytic Activity in the Sonogashira Cross-coupling Reaction

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Erdemir F., Barut Celepci D., Aktaş A., Gök Y.

CHEMISTRYSELECT, vol.4, no.19, pp.5585-5590, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 4 Issue: 19
  • Publication Date: 2019
  • Doi Number: 10.1002/slct.201901033
  • Journal Name: CHEMISTRYSELECT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.5585-5590
  • Keywords: N-Heterocyclic carbenes, Pd-PEPPSI complexes, Phenylboronic acid, Suzuki-Miyaura reaction, X-ray diffraction, HETEROCYCLIC CARBENE COMPLEXES, SUZUKI-MIYAURA, PALLADIUM COMPLEXES, CRYSTAL-STRUCTURE, NHC COMPLEXES, ARYL, PRECATALYST, DERIVATIVES, LIGANDS, HALIDES
  • Dokuz Eylül University Affiliated: Yes

Abstract

Here, new series of the 2-hydroxyethyl-substituted (NHC)PdI2(pyridine) (Pd-PEPPSI) complexes have been synthesized. These complexes have been prepared from the 2-hydroxyethyl-substituted N-heterocyclic carbene (NHC) precursors, palladium chloride and pyridine. The synthesized Pd-PEPPSI complexes have been characterized by using H-1 NMR, C-13 NMR, FTIR spectroscopy and elemental analysis techniques. The catalytic activity of the 2-hydroxyethyl-substituted Pd-PEPPSI complexes has been examined in the Sonogashira cross-coupling reaction by using phenylacetylene and aryl bromide. The Pd-PEPPSI complexes have demonstrated great activity in the Sonogashira cross-coupling reaction. The molecular and crystal structures of the three of the Pd-PEPPSI complexes were determined by single-crystal X-ray diffraction method. X-ray studies show that all the molecular structures adopt slightly distorted square-planar geometry around the palladium (II) center.