52524-94-4Relevant academic research and scientific papers
Multifunctional ruthenium catalysts: A novel borohydride-stabilized polyhydride complex containing the basic, chelating diphosphine 1,4-bis(dicyclohexylphosphino)butane and its application to hydrogenation and Murai catalysis
Drouin, Samantha D.,Amoroso, Dino,Yap, Glenn P.A.,Fogg, Deryn E.
, p. 1042 - 1049 (2002)
[RuCl2(dcypb)(CO)]2 2 (dcypb = 1,4-bis(dicyclohexylphosphino)butane) was prepared in high yield via phosphine exchange between dcypb and RuCl2(CO)PPh3)2(DMF) (1). Reaction of 2 with 8 equiv of KBHsBu3 affords [fac-RuH3(CO)(dcypb)]- (3), stabilized by interactions with a K+ counterion and an intact KBHsBu3 molecule in the third coordination sphere. Substantial ion pairing accounts for the stability and high hydrocarbon solubility of 3. Complex 3 effects reduction of benzophenone under unprecedentedly mild conditions, at 1 atm of H2 in refluxing 2-propanol. It is also active for ortho functionalization of benzophenone under 20 atm of ethylene. Stoichiometric experiments reveal facile formation of orthometalated RuH(CO)[OC(C6H4)(Ph)](dcypb) (5), an intermediate proposed in both types of catalysis. The catalytic activity of isolated 5 supports this hypothesis in the case of hydrogenation but not of Murai catalysis. The X-ray crystal structures of 3 and 5 are reported.
Deactivation of the grubbs carbene complex [RuCl2(=CHPh)(PCy3)2] by allylic alcohols
Werner, Helmut,Gruenwald, Claus,Stueer, Wolfram,Wolf, Justin
, p. 1558 - 1560 (2003)
The reactivity of Grubbs-type ruthenium carbenes toward allyl alcohol and its methyl derivative was investigated. It was observed that two distinct pathways for the conversion of the thermally labile hydroxymethylcarbene complex exist. It was also concluded that the required complexes cannot be prepared by the Fischer methodology, since the primary intermediate formed on this route with a metal-formyl bond was usually unstable.
Two generalizable routes to terminal carbido complexes
Caskey, Stephen R.,Stewart, Michael H.,Kivela, Jonathon E.,Sootsman, Joseph R.,Johnson, Marc J. A.,Kampf, Jeff W.
, p. 16750 - 16751 (2007/10/03)
Desulfurization of the thiocarbonyl ligand in square pyramidal [Ru(CS)Cl2(PCy3)2] (1-S) via sulfur atom abstraction using [Mo(H)(η2-Me2CNAr)(N[i-Pr]Ar)2] forms [Ru(C)Cl2(PCy
