A Convenient Preparation of Chalcogenoenynes from β-Bromovinyl Ketene Chalcogenoacetals
Abstract β-Bromovinyl ketene chalcogenoacetals have been synthesized stereoselectively via electrophilic addition of the benzeneselenenyl bromide to substituted alkynes. The palladium-catalyzed cross-coupling reaction of β-bromovinyl ketene chalcogenoacetals with 1-alkynes gave the corresponding cha...
Gespeichert in:
| Veröffentlicht in: | Synlett 2003-09, Vol.2003 (12), p.1880-1882 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | Abstract
β-Bromovinyl ketene chalcogenoacetals have been synthesized stereoselectively via electrophilic addition of the benzeneselenenyl bromide to substituted alkynes. The palladium-catalyzed cross-coupling reaction of β-bromovinyl ketene chalcogenoacetals with 1-alkynes gave the corresponding chalcogenoenynes in 62-85% yields |
|---|---|
| ISSN: | 0936-5214 1437-2096 |
| DOI: | 10.1055/s-2003-41499 |