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3-Methyl-1,4-diphenyl-1H,5H,7H-furo[3,4-b]pyrazolo[4,3-e]pyridin-5-one

✍ Scribed by Chen, Dong-Qin ;Tu, Shu-Jiang

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
117 KB
Volume
63
Category
Article
ISSN
1600-5368

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## Abstract Die Darstellung einer Reihe von neuen 1H‐Pyrazolo[3,4‐b]‐pyridin‐5‐ketonen wird beschrieben. In einer modifizierten __Gould‐Jacobs__‐Reaktion dienen dabei die 5‐Aminopyrazole **4** und Aethoxymethylen‐β‐keto‐ester **3** als Ausgangsverbindungen. Sind die Ketoester **1** schlecht zugängl