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Synfacts 2010(2): 0249-0249
DOI: 10.1055/s-0029-1219046
DOI: 10.1055/s-0029-1219046
Polymer-Supported Synthesis
© Georg Thieme Verlag
Stuttgart ˙ New York
Mesoporous Silica-Supported Ru-NHC Catalysts for Alkene Metathesis
I. Karamé, M. Boualleg, J.-M. Camus, T. K. Maishal, J. Alauzun, J.-M. Basset, C. Copéret, R. J. P. Corriu, E. Jeanneau, A. Mehdi, C. Reyé, L. Veyre, C. Thieuleux*
Université Lyon 1, Villeurbanne and Université Montpellier, France
Further Information
Publication History
Publication Date:
21 January 2010 (online)
![](https://www.thieme-connect.de/media/synfacts/201002/lookinside/thumbnails/10.1055-s-0029-1219046-1.jpg)
Significance
Mesoporous silica-supported Ru-NHC heterogeneous catalysts, RuBn and RuPr, were developed for alkene metathesis. The catalysts were prepared by i) co-hydrolysis and co-polymerization of 1a or 1b with Si(OEt)4 and Pluronic P123 (a structure-directing agent), ii) subsequent treatment of mesitylimidazole, iii) passivation of all residual alkoxy/silanol groups, and iv) installation of Ru species to afford the corresponding mesostructured catalysts RuBn and RuPr. When the metathesis of ethyl oleate was carried out with RuPr (0.01 mol%) at 40 ˚C for five hours, the conversion of ethyl oleate was 50% with an initial TOF of 65 min-¹.