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RCM with Mesocellular Foam-Supported Ruthenium Catalysts
J. Lim, S. S. Lee, S. N. Riduan, J. Y. Ying*
Institute of Bioengineering and Nanotechnology, The Nanos, Singapore
23 August 2007 (online)
The heterogenized catalysts 4a and 4b were prepared from alcohol 1a and phenol 1b in three steps, respectively. The 1,6-diene 5 was smoothly and quantitatively transformed into the cyclized product 6 by using 5 mol% Ru of 4a or 4b in CH2Cl2 at ambient temperature. The supported catalysts 4a and 4b exhibited good recyclabilities in this reaction. The heterogeneous RCM of various dienes (12 examples) was examined with 4a or 4b.