A β‐Diketiminato‐Based Pincer‐Type Nickel(II) Complex: Synthesis and Catalytic Performance in the Cross‐Coupling of Aryl Fluorides with Aryl Grignard Reagents

Autor: Yoshitaka Yamaguchi, Yuki Hatayama, Youji Kurihara, Erika Asano, Nobutaka Kurisu, Kei Funatsu, Toru Hashimoto, Kazuyoshi Ueda
Rok vydání: 2018
Předmět:
Zdroj: European Journal of Inorganic Chemistry. 2019:126-133
ISSN: 1099-0682
1434-1948
DOI: 10.1002/ejic.201801179
Popis: A β‐diketiminato‐based tridentate pincer‐type nickel(II) complex Ni‐NNP was prepared by the reaction of the nickel(II) precursor [NiCl2(2,4‐lutidine)2] with the lithiated NNP ligand, which was generated in situ by the reaction of the NNP pro‐ligand H‐NNP with nBuLi. H‐NNP was prepared by the condensation of 4‐[(2,4,6‐trimethylphenyl)amino]pent‐3‐en‐2‐one with 2‐(diphenylphosphanyl)ethylamine. Ni‐NNP was characterized spectroscopically and by X‐ray diffraction, revealing a slightly distorted square‐planar geometry around the nickel center. Density functional theory calculations indicated that the highest occupied molecular orbital in Ni‐NNP is located at higher energy than those of three other homologous nickel(II) complexes, i.e., Ni‐ONN, Ni‐ONP, and Ni‐NNN, which contain β‐aminoketonato‐ or β‐diketiminato‐based pincer‐type ligands. The electronic and steric properties of Ni‐NNP effectively facilitated the cross‐coupling of aryl fluorides with aryl Grignard reagents.
This is the peer reviewed version of the following article: [Nobutaka Kurisu et al, 2019, The European Journal of Inorganic Chemistry, 2019 1 126-133], which has been published in final form at [https://doi.org/10.1002/ejic.201801179]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Databáze: OpenAIRE
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