Heterogeneous gold catalysts for efficient access to functionalized lactones
Neatu F, Li Z, Richards R, Toullec PY, Genet JP, Dumbuya K, Gottfried M, Steinrück HP, Parvulescu VI, Michelet V (2008)
Publication Type: Journal article
Publication year: 2008
Journal
Original Authors: Neatu F., Li Z., Richards R., Toullec P.Y., Genet J.-P., Dumbuya K., Gottfried J.M., Steinrück H.-P., Parvulescu V.I., Michelet V.
Publisher: Wiley-VCH Verlag
Book Volume: 14
Pages Range: 9412-9418
Journal Issue: 30
Abstract
A novel class of heterogeneous gold catalysts supported on zeolite beta-NH was prepared by the deposition-precipitation method. This new class of catalyst showed interesting catalytic activities for the intramolecular cycloisomerization of γ-acetylenic carboxylic acids leading to functionalized γ-alkylidene γ-butyrolactones. Analysis of the supported gold species with in situ X-ray photoelectron spectroscopy (in situ XPS) suggests that cationic Au (possibly Au) can play an important role in such reactions. The high discrepancy in catalyst stability in favor of the Au supported on the zeolite system over bulk AuO is explained by 1) the size of the particles and 2) the reversibility of the redox deactivating process (Au→Au ) in the presence of oxygen for the supported system. The efficiency of this system allowed reaction under mild heterogeneous conditions. The potential for catalyst recycling was also highlighted. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
Authors with CRIS profile
Michael Gottfried
Naturwissenschaftliche Fakultät
Hans-Peter Steinrück
Lehrstuhl für Physikalische Chemie II
Additional Organisation(s)
Involved external institutions
University of Bucharest / Universitatea din București
Romania (RO)
Colorado School of Mines
United States (USA) (US)
Chimie ParisTech / École nationale supérieure de chimie de Paris (ENSCP)
France (FR)
Romania (RO)
Colorado School of Mines
United States (USA) (US)
Chimie ParisTech / École nationale supérieure de chimie de Paris (ENSCP)
France (FR)
How to cite
APA:
Neatu, F., Li, Z., Richards, R., Toullec, P.Y., Genet, J.-P., Dumbuya, K.,... Michelet, V. (2008). Heterogeneous gold catalysts for efficient access to functionalized lactones. Chemistry - A European Journal, 14(30), 9412-9418. https://doi.org/10.1002/chem.200801327
MLA:
Neatu, Florentina, et al. "Heterogeneous gold catalysts for efficient access to functionalized lactones." Chemistry - A European Journal 14.30 (2008): 9412-9418.
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