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In the synthesis of organic compounds, heterogeneous catalysts have gained significance versus their homogeneous counterparts, due to both environmental and economic concerns. 1-4 Homogeneous catalytic systems cannot as readily be commercialized owing to difficulties encountered with equipment corrosion, solvent recycling, isolation, and reusability of the catalyst. In recent years, metallic nanoparticles have found use as heterogeneous catalysts. 5-9 Nanometal oxides possess a surface Lewis acid (metal cation) and Lewis base (oxygen anion), 10 and they enhance organic reactions because they act as excellent adsorbents for a wide variety of organic molecules. The high surface area to volume ratio of the metal oxide nanoparticles is in large part responsible for their catalytic activities. 11 In connection with this, zinc oxide is of low cost and has been widely used in industry. 12-15 In recent years, ZnO …