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Trans-Ru

Noyori et al. recently used ESI-MS to characterize species present in catalytically active solutions during the hydrogenation of aryl-alkyl ketones using their base-free catalyst precursors trans-[Ru((R)-tol-BINAP)((R, RJ-dpenJfHXf/ -BH ] (tol-BI-NAP = 2,2 -bis(ditolylphosphino) -1, T-binaphthyl dpen = 1,2-diphenylethylenedia-mine) in 2-propanol [9b]. Based upon ESI-MS observations, deuterium-labeling studies, kinetics, NMR observations, and other results, the authors proposed that the cationic dihydrogen complex trans-[Ru((R)-tol-BINAP)((R, R)-dpen)(H)( 2-H2)]+ is an intermediate in hydrogenations carried out in the absence of base. [Pg.367]

Complex formation between Ru and ligand (12) has been investigated [Ru(12)3] is easily prepared and can be oxidized to the corresponding Ru complex. Substitution by PPh3, py, or im (L) occurs very slowly, and in [Ru (12)3] , it occurs with concomitant reduction to yield trans- [Ru(12)2L2]-. ... [Pg.563]

Complexes of the type [Ru(bpy)2L2L in which L is a simple, monodentate ligand will be surveyed first. The structure of tra 5-[Ru(bpy)2(H20)2][PF6]2 has been determined steric inter actions result in the bpy ligands being bowed .Similar deformations are observed in trans [Ru(bpy)2(MeCN)2] " and tra 5-[Ru(bpy)2(NH3)2]... [Pg.583]

The kinetics and mechanisms of the oxidation of various other phosphines by trans-[Ru (0)2(tpy)(H20)] " and tranx-[Ru (0)2(tpy)(MeCN)] " have also been investigated. ... [Pg.771]

See other pages where Trans-Ru is mentioned: [Pg.22]    [Pg.27]    [Pg.60]    [Pg.19]    [Pg.194]    [Pg.631]    [Pg.37]    [Pg.42]    [Pg.60]    [Pg.48]    [Pg.57]    [Pg.120]    [Pg.120]    [Pg.226]    [Pg.387]    [Pg.210]    [Pg.77]    [Pg.77]    [Pg.77]    [Pg.77]    [Pg.90]    [Pg.250]    [Pg.356]    [Pg.360]    [Pg.362]    [Pg.571]    [Pg.573]    [Pg.573]    [Pg.574]    [Pg.585]    [Pg.586]    [Pg.627]    [Pg.655]    [Pg.665]    [Pg.677]    [Pg.768]    [Pg.771]    [Pg.774]    [Pg.774]    [Pg.774]    [Pg.777]    [Pg.777]    [Pg.777]    [Pg.777]    [Pg.778]    [Pg.779]    [Pg.779]   
See also in sourсe #XX -- [ Pg.2 , Pg.2 , Pg.2 , Pg.3 , Pg.96 ]



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Complex trans-[Ru

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