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ChemInform Abstract: An Unexpected Product in Attempted (4 + 2) Cycloadditions of 2,2- Diethyl-4,5-dimethyl-2H-imidazole.

✍ Scribed by M. FELDERHOFF; R. SUSTMANN; I. STELLER; R. BOESE

Book ID
112023787
Publisher
John Wiley and Sons
Year
2010
Weight
27 KB
Volume
26
Category
Article
ISSN
0931-7597

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An unexpected product in attempted [4 +
An unexpected product in attempted [4 + 2] cycloadditions of 2,2-diethyl-4,5-dimethyl-2H-imidazole
✍ Felderhoff, Michael ;Sustmann, Reiner ;Steller, Ingo ;Boese, Roland 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 221 KB

## Abstract 2,2‐Diethyl‐4,5‐dimethyl‐2__H__‐imidazole 1, formally a 1,4‐di‐azadiene, does not produce [4 + 2] cycloadducts with various electronically‐different dienophiles. In the presence of tri‐fluoroacetic acid, it tautomerizes to 2,2‐diethyl‐4‐methyl‐5‐methylene‐3‐imidazoline 2 and forms a dim