Recyclization of 2-Imino-2H-1-benzopyrans with Nucleophilic Reagents - Reaction of 2-Iminocoumarin-3-carboxamides with 2-Aminothiophene-3-carboxamides

ABSTRACT In the course of our research on the synthesis of coumarins, the interaction of 2-iminocoumarin-3-carboxamides with a series of 2-aminothiophene-3-carboxamides was studied. It was established that the initial products - 2-substituted coumarin-3-carboxamides - can undergo rearrangement to 2-...

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Bibliographic Details
Published in:Synthesis (Stuttgart) 2006-03, Vol.2006 (5), p.847-852
Main Authors: Kovalenko, Sergiy M., Vlasov, Sergiy V., Chernykh, Valentin P.
Format: Article
Language:English
Online Access:Get full text
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Summary:ABSTRACT In the course of our research on the synthesis of coumarins, the interaction of 2-iminocoumarin-3-carboxamides with a series of 2-aminothiophene-3-carboxamides was studied. It was established that the initial products - 2-substituted coumarin-3-carboxamides - can undergo rearrangement to 2-(coumarin-3-yl)thieno[2,3-D]pyrimidin-4-ones by refluxing in DMF.
ISSN:0039-7881
1437-210X
DOI:10.1055/s-2006-926333