Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact:

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

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


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.