Enantioselective hydrogenation of isophorone over Pd catalysts in the presence of(-)-dihydroapovincaminic acid ethyl ester the effect of reduction method of Pd blacks on the enantiomeric excess

G. Farkas, E. Sípos, A. Tungler, A. Sárkány, J. L. Figueiredo

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The enantioselective heterogeneous catalytic hydrogenation of isophorone in the presence of apovincaminic acid ethyl ester was investigated. Various Pd black catalysts differing in their preparation method were studied. The catalysts were characterized by different methods such as physical adsorption and chemisorption, SEM and XPS. An explanation was created for the different enantioselectivity of the catalysts being precipitated by different reducing agents.

Original languageEnglish
Pages (from-to)101-107
Number of pages7
JournalJournal of Molecular Catalysis A: Chemical
Volume170
Issue number1-2
DOIs
Publication statusPublished - May 14 2001

Fingerprint

Hydrogenation
hydrogenation
esters
Esters
catalysts
acids
Catalysts
Acids
Enantioselectivity
Reducing Agents
Reducing agents
Chemisorption
chemisorption
X ray photoelectron spectroscopy
Adsorption
preparation
Scanning electron microscopy
scanning electron microscopy
adsorption
isophorone

Keywords

  • Enantioselective hydrogenation
  • Isophorone
  • Pd black catalysts

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

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T1 - Enantioselective hydrogenation of isophorone over Pd catalysts in the presence of(-)-dihydroapovincaminic acid ethyl ester the effect of reduction method of Pd blacks on the enantiomeric excess

AU - Farkas, G.

AU - Sípos, E.

AU - Tungler, A.

AU - Sárkány, A.

AU - Figueiredo, J. L.

PY - 2001/5/14

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N2 - The enantioselective heterogeneous catalytic hydrogenation of isophorone in the presence of apovincaminic acid ethyl ester was investigated. Various Pd black catalysts differing in their preparation method were studied. The catalysts were characterized by different methods such as physical adsorption and chemisorption, SEM and XPS. An explanation was created for the different enantioselectivity of the catalysts being precipitated by different reducing agents.

AB - The enantioselective heterogeneous catalytic hydrogenation of isophorone in the presence of apovincaminic acid ethyl ester was investigated. Various Pd black catalysts differing in their preparation method were studied. The catalysts were characterized by different methods such as physical adsorption and chemisorption, SEM and XPS. An explanation was created for the different enantioselectivity of the catalysts being precipitated by different reducing agents.

KW - Enantioselective hydrogenation

KW - Isophorone

KW - Pd black catalysts

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JF - Journal of Molecular Catalysis A: Chemical

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