The First Versatile Synthesis of 1-Alkyl-3-fluoro-1H-[1,2,4]triazoles
摘要:
Reaction of 1-benzyl-3,5-dibromo-1H-[1,2,4]triazole (3) with cesium fluoride yielded selectively 1-benzyl-3-bromo-5-fluoro-1H-[1,2,4]triazole (4). Debenzylation and realkylation afforded 1-alkyl-5-bromo-3-fluoro-1H-[1,2,4]triazoles 7, which reacted with a wide variety of nucleophiles to give 5-substituted 1-alkyl-3-fluoro-1H-[1,2,4]triazoles.
The First Versatile Synthesis of 1-Alkyl-3-fluoro-1H-[1,2,4]triazoles
作者:Albrecht Zumbrunn
DOI:10.1055/s-1998-6080
日期:1998.9
Reaction of 1-benzyl-3,5-dibromo-1H-[1,2,4]triazole (3) with cesium fluoride yielded selectively 1-benzyl-3-bromo-5-fluoro-1H-[1,2,4]triazole (4). Debenzylation and realkylation afforded 1-alkyl-5-bromo-3-fluoro-1H-[1,2,4]triazoles 7, which reacted with a wide variety of nucleophiles to give 5-substituted 1-alkyl-3-fluoro-1H-[1,2,4]triazoles.