Highly Stereoselective Intramolecular Carbofluorination of Internal α,ß-Ynones Promoted by Selectfluor.
Org Lett
; 23(11): 4488-4492, 2021 06 04.
Article
de En
| MEDLINE
| ID: mdl-34029477
ABSTRACT
Herein, we report a metal-free intramolecular carbofluorination protocol for the synthesis of tetrasubstituted monofluoroalkenes from internal α,ß-ynones and Selectfluor with both high stereoselectivity and broad functional group tolerance. The chelation between tetrafluoroborate anion and the oxygen present in the aldehyde group rendered the reaction highly stereoselective, with the tetrafluoroborate serving as the direct fluorine source. Therefore, with addition of sodium tetrafluoroborate, Selectfluor could be reused several times without sacrificing reactivity.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
Org Lett
Sujet du journal:
BIOQUIMICA
Année:
2021
Type de document:
Article