Download PDF
Synfacts 2010(2): 0249-0249  
DOI: 10.1055/s-0029-1219046
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Mesoporous Silica-Supported Ru-NHC Catalysts for Alkene Metathesis

Contributor(s): Yasuhiro Uozumi, Yoichi M. A. Yamada
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)

    Permissions and Reprints

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.