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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 41, 2011 - Issue 7
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Original Articles

Synthesis of New Iminocoumarins Bearing Parabanic Moieties

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Pages 1017-1026 | Received 04 Jan 2010, Published online: 03 Mar 2011
 

Abstract

The synthesis of novel substituted 3-p-nitro-phenyliminocoumarins and corresponding N-ureaiminocoumarins is described. The condensation of these materials with oxalyl chloride leads to the corresponding N-parabanic iminocoumarins, which have not previously been described, in moderate or good yields and high selectivity. The structures were characterized by Fourier transform infrared, 1H and 13C NMR, and elemental analysis.

ACKNOWLEDGMENTS

The authors acknowledge the Ministry of Higher Education, Scientific Research, and Technology in Tunisia for their financial support. They also thank Pr. Rachid El Gharbi for his useful discussions about this work.

Notes

a Yields obtained with piperidine as catalyst.

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