Mechanism of hydrogenolysis and isomerization of oxacyloalkanes on metals, V. Selectivities of metal catalysts in ring-opening reactions of oxiranes

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8 Citations (Scopus)

Abstract

The deoxygenation of methyloxirane to propene and its isomerization to oxo compounds on a Ni/SiO2 catalyst were studied in a pulse microreactor, in the presence of H2 as carrier gas, at 473 K. It was found that the deoxigenation leads to the creation of new types of active centers (Lewis acid site-basic site), which cause a change in the direction of ring opening. The differences in regioselectivity observed between Ni and Cu, and Pt and Pd, can be explained by the different affinities of the metals for oxygen. This finding can be generalized to other oxygen-containing compounds.

Original languageEnglish
Pages (from-to)339-343
Number of pages5
JournalReaction Kinetics and Catalysis Letters
Volume29
Issue number2
DOIs
Publication statusPublished - szept. 1985

Fingerprint

deoxygenation
oxygen compounds
hydrogenolysis
Hydrogenolysis
Catalyst selectivity
Epoxy Compounds
Isomerization
isomerization
affinity
selectivity
Metals
Oxygen
catalysts
Lewis Acids
Regioselectivity
acids
Catalysts
causes
rings
oxygen

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

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abstract = "The deoxygenation of methyloxirane to propene and its isomerization to oxo compounds on a Ni/SiO2 catalyst were studied in a pulse microreactor, in the presence of H2 as carrier gas, at 473 K. It was found that the deoxigenation leads to the creation of new types of active centers (Lewis acid site-basic site), which cause a change in the direction of ring opening. The differences in regioselectivity observed between Ni and Cu, and Pt and Pd, can be explained by the different affinities of the metals for oxygen. This finding can be generalized to other oxygen-containing compounds.",
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T1 - Mechanism of hydrogenolysis and isomerization of oxacyloalkanes on metals, V. Selectivities of metal catalysts in ring-opening reactions of oxiranes

AU - Notheisz, F.

AU - Bartók, M.

AU - Zsigmond, A.

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AB - The deoxygenation of methyloxirane to propene and its isomerization to oxo compounds on a Ni/SiO2 catalyst were studied in a pulse microreactor, in the presence of H2 as carrier gas, at 473 K. It was found that the deoxigenation leads to the creation of new types of active centers (Lewis acid site-basic site), which cause a change in the direction of ring opening. The differences in regioselectivity observed between Ni and Cu, and Pt and Pd, can be explained by the different affinities of the metals for oxygen. This finding can be generalized to other oxygen-containing compounds.

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