Publication | Closed Access
Hydrogenolysis of a Ruthenium Carbene Complex to Yield Dihydride−Dihydrogen Tautomers: Mechanistic Implications for Tandem ROMP−Hydrogenation Catalysis
59
Citations
14
References
2000
Year
Chemical EngineeringDihydride−dihydrogen TautomersEngineeringTandem Romp−hydrogenation CatalysisHydrogenation CatalystOrganometallic CatalysisCatalysisRuthenium Carbene ComplexHydrogenChemistryCatalyst 1Molecular CatalysisCh2cl2 Yields RuHomogeneous CatalysisCatalytic Synthesis
Conversion of Grubbs's catalyst 1 into a hydrogenation catalyst is described. Hydrogenolysis of the Ru−carbene bond in CH2Cl2 yields Ru(IV) species 2; in other solvents, a mixture of 2 and its dihydrogen tautomer 4 is formed, even in the presence of base. Further reaction gives hydridochloro complex RuHCl(H2)(PCy3)2 3, which reverts to 2 in CH2Cl2.
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