The effect of substituents of immobilized Rh complexes on the asymmetric hydrogenation of acetophenone derivatives

• Authors: Ágnes Zsigmond , Suhsen Undrala , Ferenc Notheisz , Áron Szöllősy , József Bakos
• Languages of publication: EN

Abstracts

EN

Using a modified Augustine’s method variously substituted Rh complexes were anchored on Al2O3 support. The prepared catalysts were characterized by spectroscopic methods and were applied in the hydrogenation of several acetophenone derivatives (p-CF3-acetophenone, acetophenone, p-NH2-acetophenone). Enantioselective C=O hydrogenations were observed with reasonable activity and selectivity on all heterogenized complexes, e.e. up to 80%. At the same time the immobilized samples showed the advantages of the heterogeneous systems: easy handling and recyclability. [...]

Keywords

EN

Hydrogenation; Enantioselective; Immobilized; Rh complexes

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2008
• Volume: 6
• Issue: 4
• Pages: 549-554

Dates

published

1 - 12 - 2008

online

28 - 10 - 2008

Contributors

author

Ágnes Zsigmond

• Department of Organic Chemistry, University of Szeged, 6720, Szeged, Hungary

author

Suhsen Undrala

• Department of Organic Chemistry, University of Szeged, 6720, Szeged, Hungary

author

Ferenc Notheisz

• Organic Catalysis Research Group of the Hungarian Academy of Sciences, University of Szeged, 6720, Szeged, Hungary

author

Áron Szöllősy

• Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1521, Budapest, Hungary

author

József Bakos

• Department of Organic Chemistry, University of Pannonia, 8200, Veszprém, Hungary

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Identifiers

DOI

10.2478/s11532-008-0056-x