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Single Site Supported Cationic Rhodium(I) Complexes for the Selective Redox Isomerization of Allylic Alcohols
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK), Inorganic and Structural Chemistry.
Stockholm University, Faculty of Science, Department of Organic Chemistry.
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK), Physical Chemistry.
Stockholm University, Faculty of Science, Department of Organic Chemistry.
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2012 (English)In: ChemCatChem, ISSN 1867-3880, E-ISSN 1867-3899, Vol. 4, no 2, 243-250 p.Article in journal (Refereed) Published
Abstract [en]

The isomerization of allylic alcohols to carbonyl compounds by a heterogeneous rhodium complex is reported. Different silica material supports and catalyst/ligand systems were evaluated. The most efficient catalyst in terms of catalytic activity and stability was found to be a cationic rhodium(I) complex with sulfonated phosphine ligands anchored on a mesoporous aluminosilica AlSBA-15. The heterogeneous complex catalyzed the isomerization of a variety of allylic alcohols in excellent yields with very low catalyst loadings (0.5 mol %). The catalyst could be recycled without significant loss of activity or selectivity. The optimized catalyst was characterized by N2 sorption, powder X-ray diffraction, transmission electron microscopy, as well as solution and solid-state nuclear magnetic resonance, and Fourier Transform infrared spectroscopies.

Place, publisher, year, edition, pages
2012. Vol. 4, no 2, 243-250 p.
Keyword [en]
aluminosilicates, heterogeneous catalysis, hydrogen bonds, immobilization, mesoporous materials, noncovalent interactions
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:su:diva-71861DOI: 10.1002/cctc.201100321ISI: 000299616800015OAI: oai:DiVA.org:su-71861DiVA: diva2:486432
Funder
Swedish Research CouncilBerzelii Centre EXSELENTVINNOVA
Available from: 2012-01-30 Created: 2012-01-30 Last updated: 2017-11-13Bibliographically approved

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