Synthesis and characterization of (pyrazolylethylphosphinite)nickel(II) complexes and catalytic activity towards ethylene oligomerization

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dc.contributor.authorEdor, J.M.
dc.contributor.authorAmenuvor, G.
dc.contributor.authorObuah, C.
dc.contributor.authorMuller, A.
dc.contributor.authorDarkwa, J.
dc.date.accessioned2019-07-12T11:34:57Z
dc.date.available2019-07-12T11:34:57Z
dc.date.issued2018-02
dc.description.abstractCompounds (2‐(3,5‐dimethyl‐1H‐pyrazol‐1‐yl)ethyldiphenylphosphinite (L1), 2‐(3,5‐di‐tert‐butyl‐1H‐pyrazol‐1‐yl)ethyldiphenylphosphinite (L2), and 2‐(3,5‐diphenyl‐1H‐pyrazol‐1‐yl)ethyldiphenylphosphinite (L3) were prepared using the synthetic routes reported in literature. These compounds were reacted with [NiCl2(DME)2] or [NiBr2(DME)2] under appropriate reaction conditions to afford six new nickel(II) compounds ([NiCl2(L1)] (1), [NiCl2(L2)] (2), [NiCl2(L3)] (3), [NiBr2(L1)] (4), [NiBr2(L2)] (5) and [NiBr2(L3)] (6)). The new nickel(II) pre‐catalysts catalyze the oligomerization of ethylene, in the presence of ethylaluminium dichloride as co‐catalyst, to produce butenes, hexenes, octenes and higher carbon chain ethylene oligomers with very little Friedel‐Crafts alkylation products when the reactions were run in toluene.en_US
dc.identifier.otherhttps://doi.org/10.1002/aoc.4101
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/31430
dc.language.isoenen_US
dc.publisherApplied Organometallic Chemistryen_US
dc.subjectEthyleneen_US
dc.subjectNickel complexesen_US
dc.subjectOligomerizationen_US
dc.subjectPyrazolylphosphiniteen_US
dc.titleSynthesis and characterization of (pyrazolylethylphosphinite)nickel(II) complexes and catalytic activity towards ethylene oligomerizationen_US
dc.typeArticleen_US

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