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SELECTIVE OXIDATION OF ALCOHOLS BY MOLECULAR OXYGEN OVER A PD/MGO CATALYST IN THE ABSENCE OF ANY ADDITIVES
Citation:
Pillai**, U R. AND E SahleDemessie*. SELECTIVE OXIDATION OF ALCOHOLS BY MOLECULAR OXYGEN OVER A PD/MGO CATALYST IN THE ABSENCE OF ANY ADDITIVES. Leitner, W. (ed.), GREEN CHEMISTRY. Royal Society of Chemistry, Cambridge, Uk, 6(3):161-165, (2004).
Description:
Selective oxidation of alcohols to the corresponding carbonyl products using molecular oxygen is achieved over a simple and easily recyclable 1% Pd/MgO impregnated heterogeneous catalyst in the presence of trifluorotoluene. A variety of activated and non-activated alcohols are effectively oxidized without the use of any additives under a relatively mild reaction condition. Other supported Pd catalysts such a Pd/Hydrotalcite (HT), Pd/Al2O3, Pd/SiO2 and Pd/Zeolite-β are also studied for comparison. Pd/HT also shows a comparable oxidation activity like Pd/MgO where as other supported catalysts were not found to be active for the reaction under the conditions studied. A mechanism of the reaction is also outlined.