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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 39, 2008 - Issue 1
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Original Articles

Synthesis of Novel 1,4-Benzoxazine-2,3-Dicarboximides from Maleic Anhydride and Substituted Aromatic Amines

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Pages 70-84 | Received 08 May 2008, Published online: 15 Feb 2011
 

Abstract

A series of novel 1,4-benzoxazine-2,3-dicarboximides starting from maleic anhydride and substituted aromatic amines were synthesized.

ACKNOWLEDGMENTS

We are grateful to the Department of Chemistry and Pharmaceutical of Informatics Institute of Zhejiang University for 1H NMR data, ESI-MS spectra and elemental analyses. We are also grateful to other staff of ZJU-ENS Joint Medicinal Chemistry Laboratory.

Notes

a No data available.

a 0.2 eq of KOH or CH3COONa was used as catalyst.

b Refers to temperature of oil baths.

c Refers to isolated yield.

d The reaction mixture turned to be dark in minutes after KOH was added to the reaction system.

e Complex mixtures were observed on TLC, and the desired product was not isolated.

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