✦ LIBER ✦
A novel synthesis of linear polyenes via conjugate addition of cuprates to α,β-γ,δ-diunsaturated sulfones followed by SO2 extrusion
✍ Scribed by Ferdinand Näf; René Decorzant; Sina D. Escher
- Book ID
- 104219578
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- French
- Weight
- 193 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
The two 1,3-butadienyl Z-propenyl sulfones 5 and 6, 1,3,5-heptatrlene synthons,have been transformed into the trl-and tetraenes 1 -4 by alkylcuprate addltlon and Ramberg-Backlund
SO2 extrusion
The reaction stereochemistry 1s discussed
The undecatrlenes 1 and 2, isolated from Galbanum"L, also occur, together with the undeca tetraenes 2 and 4, In the seaweeds ~z~~opterzs pZagzogrmu