FUNCTIONALIZATION OF SILICA-GEL AND MONTMORILLONITE BY SILANE COUPLING REAGENT .4. APPLICATION AS IMMOBILIZED CATALYSTS IN DIOXYGEN OXIDATION OF ORGANIC-COMPOUNDS

Immobilized catalysts were prepared from silica gel and montmorillonit e functionalized by silane coupling reagents. Complexes with metal ion s were easily formed. The dioxygen oxidation of hydrocarbon using the immobilized catalyst was investigated. Cyclohexanol (mainly) and some cyclohexanone were produced by the oxidation of cyclohexane at ordinar y temperature, under atmospheric pressure. Dioxygen oxidation of the n onactivated beta-position of the ethyl group in ethylbenzene was obser ved in the presence of cobalt ion-immobilized montmorillonite catalyst in the presence of lithium ion.