Reactions with 3‐Pyrazolin‐5‐ones: Synthesis of 3.4‐Dihydropyridone and Pyrano [2.3‐c] pyrazole Derivatives

1987 
Several antipyrinylpyridones and pyrano [2.3-c] pyrazoles were synthesized from 4-(cyanomethylcarbonyl)antipyrine and pyrazolinone derivatives. Reaktionen mit 3-Pyrazolin-5-onen: Synthese von 3.4-Dihydropyridon- und Pyrano[2.3-c]pyrazol-Derivaten Einige Antipyrinyl-pyridone und Pyrano [2.3-c] pyrazole wurden u. a. aus 4-(cyanomethylcarbonyl)-antipyrin und Pyrazolinon-Derivaten hergestellt.
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