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Interaction of Hydrazides of 2-Aryl-4-methyl-4-cyclohexene-1,1-dicarboxylic Acids with Certain Heterocyclic Aldehydes.

✍ Scribed by Z. Tetere; D. Zicane; I. Ravina; M. Petrova; E. Gudriniece


Publisher
John Wiley and Sons
Year
2004
Weight
104 KB
Volume
35
Category
Article
ISSN
0931-7597

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Lewis Acid-Catalyzed [3+4] Annulation of
✍ Olga A. Ivanova; Ekaterina M. Budynina; Alexey O. Chagarovskiy; Alexey E. Kaplun 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 348 KB 👁 2 views

## Abstract A novel Lewis acid‐catalyzed [3+4] annulation of 2‐(heteroaryl)cyclopropane‐1,1‐dicarboxylates with cyclopentadiene is reported. This reaction proceeds __via__ an electrophilic attack of the Lewis acid‐activated donor‐acceptor cyclopropane onto cyclopentadiene followed by Friedel–Crafts