Propene and l-octene hydroformylation with silica-supported, ionic liquid-phase (SILP) Rh-phosphine catalysts in continuous fixed-bed mode

Anders Riisager, Kim Michael Eriksen, Peter Wasserscheid, Rasmus Fehrmann

Research output: Contribution to journalJournal articleResearchpeer-review

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.
Original languageEnglish
JournalCATALYSIS LETTERS
Volume90
Issue number3-4
Pages (from-to)149-152
ISSN1011-372X
Publication statusPublished - 2003

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