1350320-32-9Relevant academic research and scientific papers
Facile O-H bond activation in alcohols by [Cp*RuCl( iPr2PSX)] (X = pyridyl, quinolyl): A route to ruthenium(IV) hydrido(alkoxo) derivatives
Jimenez-Tenorio, Manuel,Puerta, M. Carmen,Valerga, Pedro
, p. 12399 - 12401 (2011)
The complexes [Cp*RuCl(iPr2PSX)] (X = pyridyl, quinolyl) react directly with alcohols ROH (R = Me, Et, iPr, nPr) and NaBPh4, affording the novel cationic hydrido(alkoxo) derivatives [Cp*RuCl( iPr2PSX)]-[BPh4]. These ruthenium(IV) compounds result from the formal oxidative addition of the alcohol to the 16-electron fragment {[Cp*Ru(iPr2PSX)]+}, generated in situ upon chloride dissociation. The hydrido(alkoxo) complexes are reversibly deprotonated by a strong base such as KOBut, yielding the neutral alkoxides [Cp*Ru(OR)-(iPr2PSX)], which are remarkably stable toward β elimination and do not generate the corresponding hydrides. The hydrido(alkoxo) complexes undergo a slow electron-transfer process, releasing H2 and generating the dinuclear ruthenium(III) complex [{Cp*Ru(κ2-N, S-μ S-SC 5H4N)}2][BPh4]2. In this species, the Ru-Ru separation is very short and consistent with what is expected for a Ru≡Ru triple bond.
