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Continuous Rhodium-Catalyzed Hydroformylation of 1-Octene with Polyhedral Oligomeric Silsesquioxanes (POSS) Enlarged Triphenylphosphine


  • We thank W. van Herpen and T. Staring for technical assistance, A. Elemans-Mehring for help with the ICP-OES measurements, and Dr. R. Franke of the Evonik Oxeno company for helpful discussions. M.J. thanks The Netherlands Research School Combination Catalysis (NRSCC) and C.M. The Netherlands Organization for Scientific Research (NWO-CW) for financial support. Hybrid Catalysis B.V. is kindly acknowledged for POSS starting compounds.


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Go with the flow: Homogeneous catalyst recycling can be applied to the production of aldehydes in a continuous flow nanofiltration reactor (see picture) that can operate for an unprecedented period of up to two weeks without showing typical deactivation or leaching phenomena. The catalyst is based on a bulky, rigid, and robust silsesquioxane-modified PPh3 ligand, and combines efficient recovery with high activity and selectivity.