Efficient Enantioselective Synthesis of Oxahelicenes Using Redox/Acid Cooperative Catalysts.
J Am Chem Soc
; 138(36): 11481-4, 2016 09 14.
Article
de En
| MEDLINE
| ID: mdl-27574874
ABSTRACT
An efficient and enantioselective synthesis of oxa[9]helicenes has been established via vanadium(V)-catalyzed oxidative coupling/intramolecular cyclization of polycyclic phenols. A newly developed vanadium complex cooperatively functions as both a redox and Lewis acid catalyst to promote the present sequential reaction and afford oxa[9]helicenes in good yields with up to 94% ee.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
J Am Chem Soc
Année:
2016
Type de document:
Article
Pays d'affiliation:
Japon