RSS-Feed abonnieren
Bitte kopieren Sie die angezeigte URL und fügen sie dann in Ihren RSS-Reader ein.
https://www.thieme-connect.de/rss/thieme/de/10.1055-s-00000131.xml
Synfacts 2010(6): 0702-0702
DOI: 10.1055/s-0029-1219774
DOI: 10.1055/s-0029-1219774
Metal-Mediated Synthesis
© Georg Thieme Verlag
Stuttgart ˙ New York
Transmetalation of (Z)-Telluroenynes: Stereoselective Synthesis of (Z)-Enynols
C. C. Schneider, H. Caldeira, B. M. Gay, D. F. Back, G. Zeni*
Universidade Federal de Santa Maria, Brazil
Weitere Informationen
Publikationsverlauf
Publikationsdatum:
20. Mai 2010 (online)
![](https://www.thieme-connect.de/media/synfacts/201006/lookinside/thumbnails/10.1055-s-0029-1219774-1.jpg)
Significance
The synthesis of various (Z)-enynols is achieved via the reaction of alkenyllithium intermediates with aldehydes and ketones. These alkenyllithiums are obtained by a tellurium/lithium exchange. The subsequent cyclization of a broad variety of (Z)-enynols affords substituted furans and dihydrofurans with high regioselectivity under mild reaction conditions.