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Short Paper | Regular issue | Vol 89, No. 7, 2014, pp.1670-1677
Published online, 5th June, 2014
DOI: 10.3987/COM-14-13006
One-pot Synthesis of Novel Pyrano-Fused Coumarins Catalyzed by ZnO Nanoparticles

Saeed Khodabakhshi,* Bahador Karami, and Khalil Eskandari

*Department of Chemistry, Yasouj University, P.O.Box 353, Yasouj 75918-74831, Iran

Abstract

A new class of pyrano[3,2-c]coumarins containing an aryloylgroup was synthesized via the three-component reactions of 4-hydroxycoumarin with arylglyoxals and malononitrile. The reactions are efficiently catalyzed by zinc oxide nanoparticles as powerful and recyclable catalyst. The green chemistry principles were also considered and the present method has some advantages, such as simplicity, low catalyst loading, and high yields.