Propene and 1-Octene Hydroformylation with Silica-Supported, Ionic Liquid-Phase (SILP) Rh-Phosphine Catalysts in Continuous Fixed-Bed Mode |
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| Authors: | Anders Riisager K Michael Eriksen Peter Wasserscheid Rasmus Fehrmann |
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| Affiliation: | 1. Interdisciplinary Research Center for Catalysis (ICAT) and Department of Chemistry, Technical University of Denmark, Building 207, DK-2800 Kgs, Lyngby, Denmark
2. Institut für Technische Chemie und Makromolekulare Chemie, RWTH, Worringer Weg 1, D-52074, Aachen, Germany
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| Abstract: | Supported ionic liquid-phase (SILP) catalysts were made by immobilizing Rh-monophosphine complexes of bis(m-phenylguanidinium)phenylphosphine 1 and NORBOS 2 ligands in 1-n-butyl-3-methylimidazolium hexafluorophosphate, BMIM]PF6], on a silica support. The catalysts were active in continuous gas- and liquid-phase hydroformylation of propene and 1-octene, exhibiting TOFs up to 88 h-1 for SILP Rh-2 catalysts, while only low selectivities up to 74% n-aldehyde (n/iso ratio of 2.8) were obtained. This is the first example of continuous fixed-bed liquid-phase hydroformylation using SILP catalysts. |
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