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

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

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 beta-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
JournalEuropean Journal of Inorganic Chemistry
Volume2020
Issue number45
Pages (from-to)4270-4277
Number of pages9
ISSN1434-1948
DOIs
Publication statusPublished - 19 Nov 2020

    Research areas

  • Cross&#8208, coupling, Homogeneous catalysis, Nickel, Pincer ligands, Paramagnetic complexes, CATALYSIS, LIGAND, PALLADIUM(II), COORDINATION, PLATINUM(II), METALATION, ACTIVATION, HALIDES

ID: 252470979