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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 44, 2014 - Issue 19
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Original Articles

Synthesis of New Benzopyrano[2,3-c]pyrazoles and 3-triazolonyliminocoumarins From 3-cyano Iminocoumarin Derivatives

, , &
Pages 2808-2817 | Received 21 Jan 2014, Published online: 28 Jul 2014
 

Abstract

Synthesis of benzopyrano[2,3-c]pyrazoles and 3-triazolonyliminocoumarins was successfully performed using heterocyclization of 3-cyano iminocoumarin or their N-ethoxycarbonylated derivatives with semicarbazide reagents. Elemental analysis, infrared, and 1H NMR spectral data confirmed the molecular structure of the newly synthesized compounds.

GRAPHICAL ABSTRACT

ACKNOWLEDGMENTS

The authors acknowledge Pr. Rachid El Gharbi for his useful discussions about this work.

Notes

a Isolated yield.

a Isolated yield.

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