Supercritical iron catalyst

Koda and co-workers [85] studied the catalytic oxidation of cyclohexane with O2 in liquid and supercritical CO2 in the presence of acetaldehyde (cyclo-hexaneracetaldehyde = 4 1) and an iron porphyrin catalyst bearing pentafluor-ophenyl groups. The main oxidation products were cyclohexanone (2.9% yield) and cyclohexanol (2.3 % yield) with the optimum yields being achieved slightly below the estimated critical pressure of the reaction mixture. 

Bukur et al. conducted the F-T reaction on an iron-based catalyst with supercritical phase propane [25-27], and similar conclusions were obtained, indicating the above analysis to be independent of the catalyst itself and the SCF. 

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