1245460-63-2Relevant academic research and scientific papers
Exploring the reactivity of tungsten bis(imido) dimethyl complexes with methyl aluminium reagents: Implications for ethylene dimerization
Wright, William R. H.,Batsanov, Andrei S.,Howard, Judith A. K.,Tooze, Robert P.,Hanton, Martin J.,Dyer, Philip W.
, p. 7038 - 7045 (2010/09/06)
The reaction of [WCl2(NAr)2(DME)] (1) with excess Me3Al affords the dimethyl complex [WMe2(N{Ar}AlMe 2{μ-Cl})(NAr)] (2), which on treatment with THF or MeAlCl 2 yields [WMe2(NAr)2(THF)] (3) and [WMe 2(N{Ar}AlMe(Cl){μ-Cl})(NAr)] (5), respectively. Complex 3 is unstable in solution dissociating to form [WMe2(NAr)2] (4) that may be isolated as an adduct with PMe3, [WMe 2(NAr)2(PMe3)] (6). While complex 2 is inert towards ethylene, complex 3 reacts rapidly to afford a mixture of methane and but-1-ene (1:4). Neither complex 2 nor 3 react with propylene. Reaction of 3 with a C2H4/C2D4 (1:1) affords a mixture of isotopomers that is consistent with complete isotopic scrambling. The structures of complexes 1, 2, and 3 have been determined by X-ray diffraction. The Royal Society of Chemistry 2010.
