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Dimethylsulfoxide—Iodine Catalyzed Deprotection of 2′-Allyloxychalcones: Synthesis of Flavones.

✍ Scribed by Pradeep D. Lokhande; Sachin S. Sakate; Kiran N. Taksande; Beena Navghare

Publisher
John Wiley and Sons
Year
2005
Weight
16 KB
Volume
36
Category
Article
ISSN
0931-7597

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📜 SIMILAR VOLUMES

Cyclodehydrogenation of 2′-hydroxychalco
Cyclodehydrogenation of 2′-hydroxychalcones with hypervalent iodine reagent: A new synthesis of flavones
✍ Litkei, György ;Gulácsi, Katalin ;Antus, Sandor ;Blaskó, Gábor 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 465 KB

## Abstract A new synthesis of chrysin (1) and luteolin (4) was accomplished by the cyclodehydrogenation of the appropriately substituted 2′‐hydroxychalcones 21 and 22 in the presence of iodosobenzene diacetate/potassium hydroxide in methanol. The scope and limitation of this transformation is disc