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SYNTHESIS OF α-AZIDO-2′-HYDROXYCHALCONES FROM CHALCONE DIBROMIDES WITH AZIDE ION

✍ Scribed by Patonay, Tamás; Jekö, József; Rimán, Éva


Book ID
120498663
Publisher
Taylor and Francis Group
Year
2002
Tongue
English
Weight
247 KB
Volume
32
Category
Article
ISSN
0039-7911

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Flavonoids—38: Reaction of 2'-hydroxycha
✍ Tamás Patonay; Rezsö Bognár; György Litkei 📂 Article 📅 1984 🏛 Elsevier Science 🌐 French ⚖ 616 KB

The reaction of 2'-hydroxychalcone dibromides 1 or a-bromo-2'-hydroxychalcones 15 with sodium axide resulted in a mixture of a-axido-2'-hydroxychalcones 2, 3-aryl-S-(2-hydroxyphenyl)isoxaxoles 3, flavones 4, aurones 5 and 4-aryl-5-(2-hydroxybenxoyl)-1,2,3-triaxoles 6. The product ratio was strongly