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Synfacts 2006(7): 0744-0744
DOI: 10.1055/s-2006-941893
DOI: 10.1055/s-2006-941893
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York
Silica-Coated Magnetite Nanoparticles Supported Rhodium Catalyst
R. Abu-Reziq, H. Alper*, D. Wang, M. L. Post
University of Ottawa and National Research Council of Canada, Ottawa, Canada
Further Information
Publication History
Publication Date:
22 June 2006 (online)
Significance
A recyclable rhodium-complexed dendron anchored on silica-coated magnetite nanoparticles 1 was developed. The hydroformylation reaction of styrene by using catalyst 1 (50 mg) and a 1:1 mixture of carbon monoxide and hydrogen pressurized to 1000 psi gave the formylated products at complete conversion (branch 2/linear 3 = 48:1). Catalyst 1 was reused five times without any loss of catalytic activity and selectivity (see scheme for details). Eleven examples of the hydroformylation reaction of various olefins were demonstrated (5-100% conversion, branch/linear = 42/1-100/0).