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1,2,4-Triazole-Based N-Heterocyclic Carb-ene Nickel Complexes - Synthesis and Catalytic Application

Abstract : Four nickel complexes bearing 1,2,4-triazole-based N-heterocyclic carbene backbones and a cyclopentadienyl ligand were prepd. from the corresponding 1,2,4-triazolium salts and nickelocene in THF (THF) under reflux. The obtained complexes were fully characterized, including by X-ray diffraction anal. They were then used as catalysts (5 mol-%) for the borylation of aryl bromide derivs. with bis(pinacolato)diboron in the presence of Cs2CO3 as the base in THF at 70 °C for 20 h to form the corresponding borylated products in moderate yields.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01216291
Contributor : Laurent Jonchère <>
Submitted on : Friday, October 16, 2015 - 9:19:01 AM
Last modification on : Friday, July 10, 2020 - 4:05:31 PM

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Linus P. Bheeter, Duo Wei, Vincent Dorcet, Thierry Roisnel, Prasenjit Ghosh, et al.. 1,2,4-Triazole-Based N-Heterocyclic Carb-ene Nickel Complexes - Synthesis and Catalytic Application. European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2015, 2015 (31), pp.5226-5231. ⟨10.1002/ejic.201500852⟩. ⟨hal-01216291⟩

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