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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 40, 2010 - Issue 4
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Original Articles

On Water: A Practical and Efficient Synthesis of Benzoheterocycle Derivatives Catalyzed by Nanocrystalline Copper(II) Oxide

, , , &
Pages 607-614 | Received 28 Feb 2009, Published online: 03 Feb 2010
 

Abstract

Recyclable CuO nanoparticles provide an efficient, economic, and novel method for the synthesis of quinoxaline, benzoxazine, and benzothiazine. This method provides a wide range of substrate applicability, avoids the use of organic solvents, and gives benzoheterocycles in satisfactory yields.

ACKNOWLEDGMENTS

The authors are thankful to Alzahra Research Council and School of Energy Engineering, Sharif University of Technology, for the partial financial support.

Notes

a Reaction condition: aromatic amine 1a (1 mmol), dialkyl acetylenedicarboxylate 2a (1 mmol), and catalyst (0.003 mmol).

a Reaction condition: aromatic amine 1 (1 mmol), dialkyl acetylenedicarboxylate 2 (1 mmol), catalyst (0.003 mmol), water, rt.

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