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Abstract
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In the present study, the allylic oxidation of cyclohexene is investigated using molecular oxygen as an oxidant under environment-friendly conditions in the presence of rGO-dithiooxamide/Au
hybrid nanocatalyst (rGO ˘ reduced graphene oxide). This hybrid catalyst comprises nanometric
spherical gold particles supported on dithiooxamide-functionalized rGO. The structure of the prepared hybrid catalyst was characterized using FT-IR, XRD, SEM and TEM techniques. The catalytic
activity results were found to be dependent on pressure, the amount of hybrid nanocatalyst, reaction time, and temperature. In addition, an 85% conversion and 85% selectivity to 2-cyclohexene-1-
one were obtained under optimized reaction conditions. The catalytic activity over a recycled catalyst
(rGO-dithiooxamide/Au) remained at a satisfactory state after at least five cycles
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