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Addition of sulphenic acids to unactivated alkynes to give alkenyl sulphoxides

✍ Scribed by D. Neville Jones; Peter D. Cottam; John Davies

Book ID
104238101
Publisher
Elsevier Science
Year
1979
Tongue
French
Weight
213 KB
Volume
20
Category
Article
ISSN
0040-4039

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The first addition of silyl enol ethers
The first addition of silyl enol ethers to internal unactivated alkynes
✍ Ken-ichiro Imamura; Eiji Yoshikawa; Vladimir Gevorgyan; Yoshinori Yamamoto πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 French βš– 227 KB

The EtAICl2-mediated intramolecular addition of silyl enol ethers to both terminal and internal unactivated alkyttes, bearing alkyl and phenyl susbstituents at the alkyne moiety, proceeded exclusively in the endo-fashion to give mono-and bicyclic p,T-unsaturated ketones in good to excellent yields.