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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 40, 2010 - Issue 5
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Original Articles

Clean and Convenient One-Pot Synthesis of 4-Hydroxycoumarin and 4-Hydroxy-2-quinolinone Derivatives

Wen-Tao Gao College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning, ChinaCorrespondence[email protected]
,
Wen-Duan Hou College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning, China
,
Mei-Ru Zheng College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning, China
&
Li-Jun Tang College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning, China
Pages 732-738 | Received 08 Sep 2008, Published online: 04 Feb 2010
 
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Abstract

A simple, efficient, and environmentally friendly procedure has been developed for the reaction of Meldrum's acid with phenol, substituted phenols, aniline, or substituted anilines with Eaton's reagent (phosphoric anhydride + methylsulfonic acid) as cyclization reagent. 4-Hydroxycoumarins and 4-hydroxy-2-quinolinones were synthesized in moderate yields by carrying out the reaction in solvent-free, convenient, and clean one-pot preparation.

ACKNOWLEDGMENT

The financial support provided by Science Foundation of Liaoning Province of China (No. 202, 142, 037) is sincerely acknowledged.

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