Enhancing the Stability of Aromatic PCN Pincer Nickel Complexes by Incorporation of Pyridine as the Nitrogen Side Arm

Abdelrazek H. Mousa, Kaushik Chakrabarti, Ghodsieh Isapour, Jesper Bendix, Ola F. Wendt*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

New PCNPy pincer nickel complexes have been synthesized through a short synthetic route. Incorporating pyridine as the nitrogen side arm facilitated the C–H activation in the PCN ligand and allowed the cyclometallation with nickel to take place at room temperature. Pyridine also enhanced the stability of β-hydrogen-containing alkyl complexes. Also, the symmetric NCN nickel complex with pyridine side arms was successfully obtained giving a rare example of such type of complexes to be prepared through direct C–H activation. Furthermore, preliminary results showed that the (PCNPy)Ni–Br is active in Kumada coupling reactions particularly the coupling of aryl halides with aryl Grignard reagents.

Original languageEnglish
Pages (from-to)4270-4277
Number of pages8
JournalEuropean Journal of Inorganic Chemistry
Volume2020
Issue number45
DOIs
StatePublished - 7 Dec 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020 Wiley-VCH GmbH

Keywords

  • Cross-coupling
  • Homogeneous catalysis
  • Nickel
  • Paramagnetic complexes
  • Pincer ligands

ASJC Scopus subject areas

  • Inorganic Chemistry

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