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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 37, 2007 - Issue 7
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Original Articles

Silica Sulfuric Acid: An Efficient and Versatile Acidic Catalyst for the Rapid and Ecofriendly Synthesis of 1,3,4‐Oxadiazoles at Ambient Temperature

, , , &
Pages 1201-1209 | Received 31 Mar 2006, Published online: 13 Oct 2010
 

Abstract

A rapid and green synthesis of 2,5‐disubstituted 1,3,4‐oxadiazoles is reported. The title compounds were prepared by the reaction of different acyl hydrazides and orthoesters in the presence of silica sulfuric acid under solvent‐free conditions. In this new process, reactions were run at ambient temperature and completed in a short period of time with high yields.

Acknowledgment

Financial support from the Research Council of Shahid Beheshti University is gratefully acknowledged.

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