Low-temperature aerobic oxidation of decane using an oxygen-free radical initiator

The direct selective oxidation of long chain alkanes by O2 is a highly demanding reaction. We have shown that it is possible to oxidise n-decane in the presence of the oxygen-free radical initiator azobisisobutyronitrile. Formation of a range of oxygenated products has been observed under relatively mild conditions (70 °C in air). Although the presence of a catalyst is not essential when the initiator is used, ceria-based catalysts have been found to increase the selectivity to alcohols by modifying the oxyfunctionalisation of decane.

Graphical abstractDecane can be selectively oxidised under mild reaction conditions.Figure optionsDownload full-size imageDownload high-quality image (43 K)Download as PowerPoint slideHighlights► n-decane can be oxidized selectively at 70 °C in air. ► The use of an oxygen-free radical initiator azobisisobutyronitrile is beneficial. ► Au/CeO2 modify the oxyfunctionalisation of decane and enhance the selectivity to alcohols.