Next Article in Journal
Carbon-Carbon Cross Coupling Reactions in Ionic Liquids Catalysed by Palladium Metal Nanoparticles
Next Article in Special Issue
Enantioselectivity Induced by Oxazaborolidine Supported on Mesoporous Silica or by Its Analog in Homogeneous Phase
Previous Article in Journal
Characterization of the Volatile Substances and Aroma Components from Traditional Soypaste
Previous Article in Special Issue
Photocatalytic Degradation of Mecoprop and Clopyralid in Aqueous Suspensions of Nanostructured N-doped TiO2
Molecules 2010, 15(5), 3428-3440; doi:10.3390/molecules15053428

Chiral Pt/ZrO2 Catalysts. Enantioselective Hydrogenation of 1-phenyl-1,2-propanedione

1 Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile 2 Departamento Química Física i Inorgànica, Universitat Virgili i Rovira, Marcel.lí Domingo, s/n. 43007 Tarragona, Spain
* Author to whom correspondence should be addressed.
Received: 13 February 2010 / Revised: 15 April 2010 / Accepted: 10 May 2010 / Published: 12 May 2010
(This article belongs to the Special Issue Heterogeneous Catalysis)
Download PDF [453 KB, uploaded 18 June 2014]


The enantioselective hydrogenation of 1-phenyl-1,2-propanedioneover Pt colloids stabilized with (R,S)-4,5-dihydro-4,5-diphenyl-2-(6-cyanopyridinyl)imidazoline (CI) supported on a meso-structured ZrO2 under a pressure of 40 bar of H2 at 298 K has been investigated. The metal loading in all catalysts was 1 wt%. The effect of the amount of chiral modifier on the metal particle size and on the catalytic behavior was analyzed. It was found that as the CI/Pt molar ratio increases from 2.5 to 3.5 the Pt crystal size decreases from 3.0 to 1.8 nm. All catalysts were very active in the studied reaction, with the most active one being the catalyst with smaller Pt particles, whereas the selectivity is higher in those catalysts with larger chiral modified Pt metal particles.
Keywords: colloidal platinum; mesostructured ZrO2; enantioselective hydrogenation; chiral modifier colloidal platinum; mesostructured ZrO2; enantioselective hydrogenation; chiral modifier
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
MDPI and ACS Style

Urbina, C.; Campos, C.; Pecchi, G.; Claver, C.; Reyes, P. Chiral Pt/ZrO2 Catalysts. Enantioselective Hydrogenation of 1-phenyl-1,2-propanedione. Molecules 2010, 15, 3428-3440.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here


Cited By

[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert