Preferential catalytic hydrogenation of aromatic compounds versus ketones with a palladium substituted polyoxometalate as pre-catalyst

Vladimir Kogan, Zeev Aizenshtat, Ronny Neumann

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

A palladium-substituted polyoxometalate having a Keggin structure, supported on γ-alumina or active carbon, was used as a catalyst precursor for catalytic hydrogenation. The catalyst system enabled fast hydrogenation of arenes at 30 bar H2 and 230°C. Most interesting was the finding that arenes could be selectively reduced in the presence of distal ketone groups under similar conditions, 30 bar H2 and 200°C. For example, 1-phenyl-2-propanone yielded 1-cyclohexyl-2-propanone with no reduction of the ketone moiety. Additionally, aromatic compounds with vicinal (conjugated) ketone moieties underwent complete hydrogenation to saturated hydrocarbons and catalytic McMurry coupling was observed for aliphatic aldehydes.

Original languageEnglish
Pages (from-to)272-274
Number of pages3
JournalNew Journal of Chemistry
Volume26
Issue number3
DOIs
Publication statusPublished - 2002

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Aromatic compounds
Palladium
Ketones
Hydrogenation
Catalysts
Aluminum Oxide
Hydrocarbons
Acetone
Aldehydes
Alumina
Carbon
polyoxometalate I

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Preferential catalytic hydrogenation of aromatic compounds versus ketones with a palladium substituted polyoxometalate as pre-catalyst. / Kogan, Vladimir; Aizenshtat, Zeev; Neumann, Ronny.

In: New Journal of Chemistry, Vol. 26, No. 3, 2002, p. 272-274.

Research output: Contribution to journalArticle

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