Crucial parameters in the selective biphasic hydrogenation of cinnamaldehyde by biphasic Ru-TPPTS and RhCl(TPPTS)3 catalysts

Levulinic Acid Biorefineries: New Challenges for Efficient Utilization of Biomass

“…To improve the economic viability of the homogeneous process, ap ossible solution is the use of ab iphasic catalysts, for which the catalysti sp resent in as econd,p roduct-immiscible phase after the reaction and is easily separated from the product phase and recycled. [169,170] For that approach, aw ell-known case in homogeneous hydrogenationr eactions is the use of aqueous/organic biphasic systems with the use of water-soluble ruthenium complexes with Figure 9. Production of angelica lactone dimer from levulinicacid.…”

Biphasic Hydrogenation of α,β-unsaturated Aldehydes with Hydrosoluble Rhodium and Ruthenium Complexes

“…Nuithitikul and Winterbottom [9] reported the biphasic hydrogenation of cinnamaldehyde with RhCl(TFFTS) 3 to the saturated aldehyde with a 99.9% selectivity. The same researchers reported a comprehensive study of the crucial parameters for the biphasic hydrogenation of cinnamaldehyde using Ru/TPPTS systems, achieving a selectivity to the saturated alcohol of 96% and to the unsaturated aldehyde of 97% if the reaction conditions are carefully selected [10].…”

Hydrogenation of α,β-Unsaturated Carbonyl Compounds Using Recyclable Water-Soluble FeII/EDTA Complex Catalyst

“…Water-soluble rhodium and palladium complexes selectively catalyze the hydrogenation of carbon-carbon double bond to form saturated aldehydes [24][25][26]. It has been shown that water-soluble Ru/TPPTS complex selectively hydrogenate olefinic bond of cinnamaldehyde if certain parameters are controlled [27].…”