Hydrogenolysis and homologation of linear and branched pentenes on Ru/SiO/sub 2/ catalysts: implication in the mechanism of C-C bond formation and cleavage on metal surfaces
Hydrogenolysis and homologation of 1-pentene to butenes and hexenes take place simultaneously and at the same rate over a Ru/SiO/sub 2/ catalysts at 110/sup 0/C, suggesting that these two reactions are mechanistically related. /sup 13/C labeling experiments indicate that C-C cleavage occurs at the double bond of 1-pentene-1-/sup 13/C leading to unlabeled 1-butene and labeled hexenes. The product distribution in the hydrogenolysis of 1-pentene, 2-pentenes, 3-methyl-1-butene, 2-methyl-2-butene, and 2-methyl-1-butene is accounted for by a carbene-olefin mechanism, which can therefore be considered as a reasonable common path for the formation and cleavage of carbon-carbon bonds on metal surfaces.
- Research Organization:
- Conventionne a l'Universite Claude Bernard, Villeurbanne (France)
- OSTI ID:
- 5043474
- Journal Information:
- J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 110:1; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Radiation-induced copolymerization of hexafluoroacetone with. cap alpha. -olefins. [. gamma. rays]
Molecular approach to the mechanisms of C-C bond formation and cleavage on metal surfaces: Hydrogenolysis, homologation, and dimerization of ethylene over Ru/SiO sub 2 catalysts
Related Subjects
010408* -- Coal
Lignite
& Peat-- C1 Processes-- (1987-)
ALKENES
CARBON 13
CARBON ISOTOPES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL BONDS
CHEMICAL REACTIONS
DATA
DOUBLE BONDS
ELEMENTS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGENATION
INFORMATION
ISOTOPES
LABELLING
LIGHT NUCLEI
MEDIUM TEMPERATURE
METALS
MINERALS
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PENTENES
PLATINUM METALS
RUTHENIUM
SILICA
SILICON COMPOUNDS
SILICON OXIDES
STABLE ISOTOPES
SURFACES
TRANSITION ELEMENTS