Hydroformylation of functionalized olefins catalyzed by SiO2-tethered rhodium complexes

✍ Scribed by M. Marchetti; S. Paganelli; E. Viel

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 187 KB
• Volume: 222
• Category: Article
• ISSN: 1381-1169
• DOI: 10.1016/j.molcata.2004.07.022

✦ Synopsis

SiO 2 -tethered rhodium complexes deriving from Rh(CO) 2 acac and the commercially available 3-(mercapto)propyl-and 3-(1thioureido)propyl-functionalyzed silica gel, respectively, have been used as catalysts in the hydroformylation of some functionalized olefins directed to the preparation of intermediates for valuable biologically active compounds. The oxo-reaction, catalyzed by these systems, showed a good activity, with conversion, chemo-and regioselectivity values comparable with those obtained with the well-known homogeneous rhodium catalysts. These SiO 2 -tethered catalytic systems showed a quite good resistance to rhodium leaching which occurred in a quite small extent.