Cobalt-catalyzed intramolecular C-N and C-O cross-coupling reactions: synthesis of benzimidazoles and benzoxazoles.
Org Biomol Chem
; 8(24): 5692-9, 2010 Dec 21.
Article
em En
| MEDLINE
| ID: mdl-20963217
ABSTRACT
Cobalt(ii)-complex catalyzes efficiently the intramolecular C-N and C-O cross-couplings of Z-N'-(2-halophenyl)-N-phenylamidines and N-(2-bromophenyl)benzamides to afford the corresponding substituted benzimidazoles and benzoxazoles in the presence of K(2)CO(3) at moderate temperature. The protocol is general, air stable and affords the products selectively in moderate to high yield.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article