Study On The Selective Oxidation Of Cyclohexane To Cyclohexanol

The primary component of natural gas and oil are alkanes or saturated hydrocarbons, but only a small part of the oxidation of alkanes can be oxidated to same practical products. Therefore the hydrocarbon oxidation has been an important research topic. This article describes the catalytic oxidation of cyclohexane by Porphyrin catalysts, the catalyst structure is similar to porphyrin catalysts structure, the catalyst loaded with metal, etc.. It is describes that these catalysts have played a catalytic role in the selective oxidation of cyclohexane. The complex of corrole catalyst as a new catalyst has high yield and selectivity, these catalysts are the focus of research compounds in the oxidation process of alkanes in future.In this paper, to develop and establish a cleaning effective and mild selective oxidation method is a ultimate goal. The catalytic system about supported phthalocyanine catalytic system, GoAggⅡ catalytic system, transition-metal TBHP were used to catalyze cyclohexane to cyclohexanol and cyclohexoanone. The paper also compared phthalocyanine system, GoAggⅡ system and the catalyst system of transition-metal TBHP, in order to develop a new type of macrocyclic complex catalyst.With pyrrole, four chlorobenzene formaldehyde as the raw material in the mixed solvent of water and methanol generated courageous alkanes, then with four chlorobenzene consignment oxidation courageous, synthesis of 5.10.15-tri(4-chlorobenzene) corrole [(ClPh)3CorH3]. By’H NMR and mass spectrometer spectroscopy of compounds have been characterized. In the solution of pyridine, under the action of cobalt acetate tetrahydrate load the cobalt metal synthesis cobalt metal-corrole. Studied the selective catalytic oxidation of cyclohexane and toluene, ethylbenzene and n-hexane. It can be found that 5,10,15-tris (4-chlorophenyl) corrole cobalt as a new catalytic oxidation of cyclohexane, the conversion rate of hexanone is 10.21%, the conversion rate of toluene is 7.79%, the conversion rate of ethylbenzene is 32.98%, and n-hexane is not react. Although, as a new selective catalytic the selectivity of alcohol is not high, in the field of corrole compound is also a new discovery in future.In DMF solution by adding ferrous chloride tetrahydrate prepared corrole metallic iron, it is characterized by MS and EDX. It is studied that selective catalytic oxidation of n-hexane, cyclohexane ethylbenzene and toluene. It can be found that the complex of 5,10,15-tris (4-chlorophenyl) corrole iron catalyzed cyclohexane oxidation to cyclohexanol has high selectivity. The radical initiator showed high activity under the optimum conditions:the amount of solvents acetonitrile 35.0 ml, amount of cyclohexane was 5.0 g, catalyst amount was 0.4 g, TBHP amount was 11.0 mL, chlorobenzene 1.0 g, oxygen flow was 32 ml/min, and the reaction time was 6 h under 50℃, the yield of cyclohexanol and cyclohexanone were 10.80% and 10.10%.