## Abstract N‐Acyl‐N‐(4‐penten‐1‐yl)‐1‐amino‐1, 3‐butadiene (1) isomerisieren sich bei 190–215° über eine intramolekulare __Diels__‐__Alder__‐Reaktion stereoselektiv zu cis‐ verknüpften Octahydro‐chinolinen 2. Unter den gleichen Bedingungen erhält man aus dem N(Pent‐4‐enoyl)‐N‐propyl‐1‐amino−1, 3‐b
✦ LIBER ✦
A Novel Entry to the Eremophilane and Valencane Sesquiterpenes via a Stereoselective Intramolecular Diels-Alder Reaction. Preliminary communication
✍ Scribed by Ferdinand Näf; René Decorzant; Walter Thommen
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- German
- Weight
- 241 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
A general stereoselective entry to racemic eremophilane and valencane sesquiterpenes, via a common key intermediate and using an intramolecular Diels‐Alder reaction, is described.
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## Abstract The photoaddition **6**→**7**, followed by a reductive cleavage of the →‐chlorocyclobutylketone **7**, gave the stereochemically pure spiro [4,5]decane **8**.