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ChemInform Abstract: Synthesis and Tautomeric Structure of 6-Arylhydrazono 1H-Pyrazolo[3′,4′:4,5]pyrimido[1,6-b][1,2,4]triazepines (V).

✍ Scribed by Ahmad S. Shawali; Thoraya A. Farghaly

Publisher
John Wiley and Sons
Year
2009
Weight
26 KB
Volume
40
Category
Article
ISSN
0931-7597

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Abstract

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✍ Shahriyar Taghavi-Moghadam; Ruediger Stumpf; Helmut Fischer; Wolfgang Pfleiderer 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 1 views

## Facile Synthesis of 6-Aryl-1,3-dimethyl-5H-pyrimido[4,5b][1,4]diazepine-2,4(1H,3H)-diones. -A new approach to the regioselective synthesis of the title compounds (IV) starting from readily accessible 6-amino-5-benzylideneaminopyrimidines (I) is described. Condensation of compound (I) with diet