Periodic Mesoporous Silica-Supported Recyclable Rhodium-Complexed Dendrimer Catalysts

摘要: Polyamidoamine (PAMAM) dendrimers up to the third generation were grown for first time inside channels of a large-pore (6.5 nm) MCM-41 silica. In-depth characterization such materials showed that grew channels. The was found almost completely fill pore system. supported generations 0, 1, and 2 phosphinomethylated then complexed with rhodium. G(0) G(1) be very active in olefin hydroformylation. hydroformylation 1-octene accomplished turnover frequency 1800 h-1 at 70 °C catalyst could recycled several times without loss activity.