copper nanoparticles as efficient catalyst for the transesterification of p -ketoesters

transesterification, one of the most effective methods for ester synthesis, is usually conducted under acid or basicconditions. although quite a few methods have been reported for transesterification, they are not general as far asp-ketoesters are concerned. some of these methods used toxic, expensive reagents and in relatives large amount. inthis research, transesterification reaction six types p-ketoesters achieved in present of cu powder and cunanoparticles as catalyst and p-ketoesters prepared using this method. copper nanoparticles is an efficient catalystfor the transesterification of p-ketoesters with several kinds of alcohols, leading to good yields with highselectivity.