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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 34, 2004 - Issue 16
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Original Articles

Microwave Accelerated Solvent‐Free Synthesis of 1,3,4‐Oxadiazoles Using Polymer Supported Dehydration Reagent

Zheng Li College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P.R. ChinaCorrespondence[email protected]
,
Jinlan Yu College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P.R. China
,
Runbo Ding College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P.R. China
,
Zhiyuan Wang College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P.R. China
&
Xicun Wang College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P.R. China
Pages 2981-2986 | Received 19 Jan 2004, Published online: 06 Jan 2011
 
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Abstract

2‐Aryl‐5‐(coumarin‐3′‐yl)‐1,3,4‐oxadiazoles are efficiently synthesized by microwave accelerated solvent‐free procedure in high yield via the condensation of coumarin‐3‐carboxylic acid with (un)substituted benzoic acid hydrazides using poly(ethylene glycol) (PEG) supported dichlorophosphate as dehydration reagent.

Acknowledgment

The authors thank the Scientific and Technological Innovation Engineering of Northwest Normal University (NWNU‐KJCXGC‐02‐08), Natural Science Foundation of Gansu Province (ZS021‐A25‐006‐Z), Environmental Protection Foundation of Gansu Province (GH2002‐16) for the financial support of this work.

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