Abstract
A new industrially applicable method of organonickel sigma-complexes production is developed. The technique is based on the reaction of the oxidative addition of ortho-substituted aromatic bromides to electrochemically generated nickel(0)-2,2′-bipyridyl complexes. Electrolysis is performed in undivided electrolyser supplied with sacrificial nickel anode with a periodic or continuous electrolyte loading. The electrochemically obtained organonickel sigma-complexes of type [NiBr(Ar)(bpy)], where Ar is 2,4,6-trimethylphenyl, 2,4,6-triisopropylphenyl, 2,6-dimethylphenyl, are highly effective precatalysts for ethylene oligomerization process, leading to the formation of linear alpha-olefines of C4–C12 fractions
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Original Russian Text © D.G. Yakhvarov, E.A. Trofimova, I.Kh. Rizvanov, O.S. Fomina, O.G. Sinyashin, 2011, published in Elektrokhimiya, 2011, Vol. 47, No. 10, pp. 1180–1190.
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Yakhvarov, D.G., Trofimova, E.A., Rizvanov, I.K. et al. Electrochemical synthesis and catalytic activity of organonickel sigma-complexes. Russ J Electrochem 47, 1100–1110 (2011). https://doi.org/10.1134/S1023193511100247
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DOI: https://doi.org/10.1134/S1023193511100247