Reactions of O-silylated enolates with allylsilane bifunctional [4+2] and [5+2] annulating reagents
β Scribed by Thomas V. Lee; Raymond J. Boucher; John R. Porter; Caroline J.M. Rockell
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- French
- Weight
- 433 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0040-4020
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β¦ Synopsis
Stunmary: The reactions of the two aliylsilane-acetals (8) and (9) with various 0-silylated enolates is described. This has resulted in a new route to fused carbocyclic six and seven-membered rings in a one-pot reaction by use of a chemospecific allylsilane based bijknctional annulating reagent.
π SIMILAR VOLUMES
## Abstract An efficient method for the annulation of fiveβ and sixβmembered rings onto Ξ±,Ξ²βenones is described __via__ goldβcatalyzed 5β and 6β__exo__β__dig__ selective cyclizations of alkynyl silyl enol ethers.