1.
Org Biomol Chem
; 17(8): 2087-2091, 2019 02 20.
Artigo
em Inglês
| MEDLINE
| ID: mdl-30702121
RESUMO
We herein describe an oxidative [4 + 1] annulation used to prepare 1,2,4-triazolo[4,3-a]pyridines in the presence of I2-DMSO. This protocol enables synthesis of triazolo[4,3-a]pyridine-quinoline linked diheterocycles via a direct oxidative functionalization of sp3 C-H bonds of 2-methyl-azaheteroarenes. The reaction shows a wide substrate scope and good functional group tolerance.