✦ LIBER ✦

Sterically Hindered Internal Rotation in an Acyclic α,β-Unsaturated Ketone. 2, 2, 5-Trimethyl-4-isopropylhex-4-en-3-one

✍ Scribed by Prof. John M. Nuss; Steven J. Bark; Dr. Daniel B. Borchardt; Prof. Thomas Hellmann Morton

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 230 KB
Volume: 29
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.199014351

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Sterically hindered internal rotation in

Sterically hindered internal rotation in acyclic hydrocarbons: 2,5-dimethyl-3,4-diisopropyl-2,4hexadiene

✍ David S. Bomse; Thomas Hellman Morton 📂 Article 📅 1974 🏛 Elsevier Science 🌐 French ⚖ 229 KB

Hindered rotation about single bonds baa been observed in a wide variety of molecules. Recent investigations of substituted butadienes have used nmr techniques to characterize this phenomenon, which renders these molecnles cbirall. We wish to report the preparation of hydrocarbons~and~, substituted

Die sterisch gehinderte Rotation um die

Die sterisch gehinderte Rotation um die C–C–Bindung eines acyclischen α,β-ungesättigten Ketons: 2,2,5-Trimethyl-4-isopropylhex-4-en-3-on

✍ Prof. John M. Nuss; Steven J. Bark; Dr. Daniel B. Borchardt; Prof. Thomas Hellma 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 225 KB

Photochemical Reactions. 126th Communica

Photochemical Reactions. 126th Communication. Photochemistry of an α, β: δ, ε-unsaturated ketone: 4-(2′, 7′, 7′-Trimethylbicyclo [3.2.0]hept-2′-en-1′-yl)-3-buten-2-one

✍ Keitaro Ishii; Terry A. Lyle; W. Bernd Schweizer; Bruno Frei 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 German ⚖ 280 KB

## Abstract On ^1^n,π\*‐excitation, the title compound **2** undergoes a photoinduced intramolecular [4 + 2]‐cycloaddition affording the tetracyclic enol ether **3** as the only product in 79% yield. The assigned structure of **3** was confirmed by its conversion to the __p__‐nitrobenzoate **6** wh