[4 + 2]-Annulation of MBH-Acetates of Acetylenic Aldehydes with Imidazoles/Benzimidazoles To Access Imidazo[1,2-a]pyridines/Benzimidazo[1,2-a]pyridines.
J Org Chem
; 84(14): 9169-9178, 2019 Jul 19.
Article
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| MEDLINE
| ID: mdl-31290656
ABSTRACT
An unprecedented one-pot successive base-mediated allylic amination/cycloisomerization reaction strategy has been developed to construct diversely substituted imidazo[1,2-a]pyridines and benzimidazo[1,2-a]pyridines in good to excellent yield. The advantage of this unique [4 + 2]-annulation lies in the employment of readily accessible starting materials, Morita-Baylis-Hillman acetates of acetylenic aldehydes as C4 synthons, and simple imidazoles or benzimidazoles as C2 synthons.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
J Org Chem
Año:
2019
Tipo del documento:
Article
País de afiliación:
India