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Original Article

ECB. 2015; 4(10): 450-453


YTTRIUM OXIDE: A HIGHLY EFFICIENT CATALYST FOR THE SYNTHESIS OF PYRANO[2,3-d]PYRIMIDINE DERIVATIVES IN AQUEOUS METHANOL MEDIA

D. S. Bhagat, M. V. Katariya, C. S. Patil, S. U. Deshmukh, S. U. Shisodia, S. S. Pandule, R. P. Pawar.




Abstract

Synthesis of pyrano[2,3-d]pyrimidine derivatives has been achieved by one-pot three component condensation reactions of various
aromatic aldehydes, malononitrile and barbituric acid in aqueous methanol using yttrium oxide (Y2O3) as a catalyst. The potential
application of Y2O3 in various synthesis increasing rapidly due to its reaction simplicity, minimum reaction time, high yields, environment
friendly procedure and low cost of chemicals. The reactants are completely soluble in 70 % aqueous methanol and afford high yield of
products.

Key words: Pyrano[2,3-d]pyrimidines; barbituric acid; aromatic aldehydes; Y2O3 catalyst






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