Silylation of triacylglycerol: an easy route to new biosiloxanes
✍ Scribed by Abdelkrim El Kadib; Annie Castel; Fabien Delpech; Pierre Rivière
- Book ID
- 108091330
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 263 KB
- Volume
- 148
- Category
- Article
- ISSN
- 0009-3084
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📜 SIMILAR VOLUMES
Silyl-cupration of allene followed by treatment with iodine anomalously gives the vinyl iodide 2, a versatile synthetic intermediate. Recently, we reported the synthesis of allylsilanes and vinylsilanes by silyl-cupration of allenes with lithium bis(phenyldimethylsilyl)cuprate.
Treatment of different silylated allenes with hexamethyldisilathiane (HMDST) in the presence of CoCl 2 •6H 2 O affords an easy and high yielding access to a,b-unsaturated thioacylsilanes, which undergo a self-dimerization reaction to afford polyfunctionalized 1,2-dithiins as the major products.
The preparation of 1 l-hydroxy-eudesmanolides with the stereochemistry found in the Umbelliferae family of plants is described. The decalin system of the eudesmane skeleton is produced by the addition of 5-methyl-2furyllithium to 3-ethoxycyclohex-2-enone and acidic treatment of the resulting adduct.