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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 184, 2009 - Issue 9
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Original Articles

Silica Sulfuric Acid: A Versatile and Reusable Catalyst for Synthesis of Coumarin-3-carboxylic Acids in a Solventless System

Rahim Hekmatshoar Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran
,
Akram Rezaei Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran
&
S. Y. Shirazi Beheshtiha Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran
Pages 2491-2496 | Received 11 Jul 2008, Accepted 25 Sep 2008, Published online: 04 Sep 2009
 
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Abstract

Synthesis of substituted coumarin-3-carboxylic acid via Knoevenagel condensation of meldrum's acid with ortho-hydroxyaryl aldehydes in solventless system is described.

The authors are thankful to Alzahra Research Council for the partial financial support.

Notes

aIsolated yields.

aIsolated yields.

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