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ChemInform Abstract: Direct Synthesis of Imides from Dicarboxylic Acids Using Microwaves.

✍ Scribed by Julio A. Seijas; M. Pilar Vazquez-Tato; M. Montserrat Martinez; Gonzalo Nunez-Corredoira

Publisher: John Wiley and Sons
Year: 2010
Weight: 28 KB
Volume: 30
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199951118

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✦ Synopsis

Direct Synthesis of Imides from Dicarboxylic Acids Using Microwaves.

-Cyclocondensation of dicarboxylic acids (I), (IV), and (VI) with primary amines (II) proceeds smoothly under microwave irradiation to furnish cyclic imines (III), (V), and (VII), resp., in good yields. In the case of malic acid (VI), a dehydration side reaction is observed to furnish pyrrolinediones (VIII) besides cyclocondensation. The presented method excels by shorter reaction times as compared to conventional heating, avoids the use of heavy metals and can therefore be used in multigram-scale synthesis.

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