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ChemInform Abstract: Synthesis of 3-Arylazo-6-oxopyridazin-5-carbonitriles (V): A Versatile Precursor for Condensed Arylazopyridazin-6-ones.

✍ Scribed by Saleh M. Al-Mousawi; Morsy A. El-Apasery; Najat Al-Kandery; Mohamed H. Elnagdi

Publisher: John Wiley and Sons
Year: 2008
Weight: 43 KB
Volume: 39
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200828143

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## Abstract 3‐Amino‐5‐methylpyrazole, ethyl cyanoacetate and aromatic aldehydes undergo an acid‐catalyzed condensation to generate diastereomeric mixtures of pyrazolopyridinones (III)/(IV).