Catalysis of chitosan-supported iron tetraphenylporphyrin for aerobic oxidation of cyclohexane in absence of reductants and solvents

An efficient oxidation of toluene over Co(II)TPP supported on chitosan using air

“…Co(II)TPP/CTS catalyst with a Co(II)TPP/ CTS ratio of 0.0435 mmol/g was prepared according to a procedure similarly described elsewhere [14] and was characterized by UV-Vis spectroscopy, using the similar method [15]. The electronic spectra of the supported catalyst was obtained in glycerol mull in quartz vessel and compared with that of Co(II)TPP in the region of 300-550 nm (figure 1).…”

Synthesis, Characterization of Ag/MCM-41 and the Catalytic Performance for Liquid-phase Oxidation of Cyclohexane

“…The cyclohexane conversion is always controlled about 4% to keep 70$85% selectivity to cyclohexanol and cyclohexanone. In recent years, many attempts have been made to improve or substitute the classical process by developing heterogeneous catalysts with oxygen or peroxides as nonpolluting oxidants under the mild conditions [1][2][3][4][5][6][7][8][9]. However, owing to low efficiency of peroxides that make the value of the oxidant higher than that of the product [10], further emphasis is given on the catalytic oxidation in liquid phase with the cheaper oxygen as oxidant [11].…”

Magnetic Polymer Nanospheres Immobilizing Metalloporphyrins. Catalysis and Reuse to Hydroxylate Cyclohexane with Molecular Oxygen

“…8, from which we can find that the curves have a similar trend that enhance rapidly and reach maximum values after about 3 h. The turnover numbers have unchanged values with further increasing of reaction time. These results further suggest that the byproducts of this reaction, such as cyclohexanediol, dicyclohexyl, hexanedioic acid and esters, are negligible [42,43] and 3 h may be the optimum reaction time in the experiments of cyclohexane hydroxylation catalyzed by these nanospheres.…”