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Synthesis of Some New Naphthopyran, Pyrazole, Pyridine, and Thienobenzochromene Derivatives Using 1-(1-Hydroxy-2-naphthyl) Ethanone as a Versatile Starting Material

✍ Scribed by Badawy, Doria S.; Kandeel, E. M.; Awad, Noha M.; Abdel-Rahman, Abdel-Rahman H.


Book ID
121014588
Publisher
Taylor and Francis Group
Year
2008
Tongue
English
Weight
450 KB
Volume
184
Category
Article
ISSN
1042-6507

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## Abstract Condensation of 3‐formyl chromone **1** with hydroxylamine hydrochloride afforded the corresponding oxime **2** that was converted to nitrile **3**. Refluxing of oxime **2** and/or nitrile **3** with aceturic or hippuric acid gave **16** and **17**. Treatment of **1** with semicarbazide