Hydrogenation in fluorous solvents

The turnover frequency was found to be greatest for the two fluorous ligands and the control ligand with the trimethylsilyl function was found to be less effective than triphenylphosphine. These fluorous derivatives of Wilkinson s catalyst were used to hydrogenate 1-octene in perfluoromethylcyclohexane (PP2). The reaction was carried out a number of times in order to evaluate the efficiency of the system in terms of recycling and reuse [16], It was found that as the number 

Asymmetric hydrogenations have also been carried out in SCCO2. a-Enamides have been hydrogenated by using a cationic rhodium complex [19]. Enantiomeric 

Processes in which catalysts immobilized in ionic liquids have been combined with product extraction using SCCO2 show considerable promise [20], The ionic liquids are poorly soluble in the SCCO2 which allows products to be extracted without contamination from the ionic liquid or the catalyst. 

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