✦ LIBER ✦
A surprising effect of a 3-phenyl group on the stereochemistry of cyclopentanone enolate alkylation. Highly stereoselective organocopper 2,3-dialkylation of 2-cyclopentenones. Synthesis of sesquiterpene hydrocarbon (±)-laurene
✍ Scribed by Gary H. Posner; Carl M. Lentz
- Book ID
- 104235499
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- French
- Weight
- 233 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
The intermediates generated via diorganocopperlithium addition to a,B-ethylenic ke-tones can react with certain electrophiles to form a,B-dialkylated ketones 192 . This vicinal dialkylation has been used as an effective key step in synthesis of different complex organic structures including alkaloids3, sesquiterpenes 2f,4 and especially References