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E-Journal of Chemistry
Volume 8, Issue 2, Pages 910-916

One-Pot Synthesis of 1,8-Dioxo-octahydroxanthenes Utilizing Silica-Supported Preyssler Nano Particles as Novel and Efficient Reusable Heterogeneous Acidic Catalyst

Ali Javid,1 Majid M. Heravi,2 and Fatemeh F. Bamoharram1

1Department of Chemistry, School of Sciences Islamic Azad University, Mashhad Branch, Mashhad, Iran
2Department of Chemistry Azzahra University, Vanak, Tehran, Iran

Received 9 June 2010; Accepted 31 August 2010

Copyright © 2011 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A highly efficient one-pot synthesis of 1,8-dioxo-octahydroxanthenes from dimedone and various aromatic aldehydes under reflux conditions in water, catalyzed by silica-supported preyssler nano particles (SPNP) is reported. The products were formed in excellent yields and the acidic catalyst was completely heterogeneous and can be recycled for many times.