75645-32-8Relevant academic research and scientific papers
H2OsCl6 AS CATALYST IN HYDROSILYLATION REACTIONS
Kopylova, L. I.,Lukevits, E.,Voronkov, M. G.
, p. 397 - 402 (2007/10/02)
Hydrosilylation of monosubstituted acetylenes RCCH (R = Bu, Ph) with triethyl-, triethoxy-, dialkylchloro-, or alkyldichlorosilanes, catalyzed by H2OsCl6*6H2O, yields three adducts: internal (α) and two terminal (β) cis and trans stereoisomers, the latter being predominant.Hydrosilylation of ClCH2CCH occurs stereospecifically, giving, along with the prevailing α adduct, trans-β adduct as well.The reactivity of RnSiHX(3-n) in the hydrosilylation decreases in the following order: Me2SiHCl > MeSiHCl2 > EtSiHCl2 >> (EtO)3SiH > Et3SiH.Increase in the electron density on the multiple bond and solvent polarity accelerates the reaction and increases the total yield of the reaction products.Addition of Ph3P and MeCN inhibits hydrosilylation.
RUTHENIUM COMPLEXES IN HYDROSILYLATION REACTIONS OF UNSATURATED COMPOUNDS
Kopylova, L. I.,Pukhnarevich, V. B.,Khan, M. M. Tagi,Voronkov, M. G.
, p. 605 - 608 (2007/10/02)
The reactions of trichloro-, alkyldichloro-, triethyl-, and triethoxy-silanes with phenylacetylene catalyzed by Ru(CO)3(PPh3)3, RuH2(CO)(PPh3)3, RuHCl(CO)(PPh3)3, and CpRuCl(PPh3)2, lead mainly to the formation of the terminal adducts PhCH=CHSiRnX3-n (mixtures of the cis and trans isomers).In the case of triethyl- and triethoxy-silanes products of dehydrocondensation PhCCSiR and hydrogenation PhCH2CH2SiR3 (R = Et, OEt) are formed.
