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Synfacts 2005(2): 0216-0216  
DOI: 10.1055/s-2005-916101
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York

Highly Active Silica Gel-Supported Metathesis (Pre)Catalysts

Contributor(s): Yasuhiro Uozumi, Ray Kawade
D. Fischer, S. Blechert*
Technical University of Berlin, Germany
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Publikationsdatum:
25. Oktober 2005 (online)

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Significance

2,3-Disubstituted styrene 1 was immobilized on silica gel support to give 2-iso­propoxy-3-anchored styrene (loading: 0.622 mmol/g). After capping of the free Si-OH groups, the supported 2-isopropoxystyrene group was treated with Grubbs’ catalyst to afford the silica-based Ru complexes 2a and 2b. The silica gel-supported complexes 2a and 2b exhibited high catalytic activity in a variety of metathesis reactions.