Domino Cyclization Reaction of o-Diisocyanoarenes for the Synthesis of Imidazo[1,2-a]pyridinobenzimidazole Backbones.
Org Lett
; 25(30): 5682-5686, 2023 Aug 04.
Article
in En
| MEDLINE
| ID: mdl-37487026
ABSTRACT
An efficient procedure to access a variety of connected imidazo[1,2-a]pyridine and benzimidazole skeletons through the C-N bond was described as a new type of Buchwald-Hartwig reaction. Furthermore, the bis(imidazo[1,2-a]pyridin-3-yl)aryl-1,2-diamine scaffolds were obtained by changing the equivalent ratio of the starting materials. Some advantages of the protocol are the formation of four new bonds (CâC, C-N), a transition-metal-free reaction, a broad substrate scope, high yields, and mild reaction conditions. The reaction mechanism was confirmed on the basis of DFT calculations.
Full text:
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Org Lett
Year:
2023
Document type:
Article