A general synthesis of furo[3,2-c][1,2,4]triazolo[1,5-a]azepine and furo [2,3-f][1,2,4]triazolo[1,5-a]azepine derivatives

作者：Meng Qingqing; Bai Hexiang; Wang Quanrui^*; Tao Fenggang

来源：Synthesis (Germany), 2007, 2007(1): 33-38.

DOI：10.1055/s-2006-950368

• 1-aza-2-azoniaallene cations
• cycloaddition
• nitriles
• ring enlargement
• furotriazoloazepine

Derivatives of two new heterocyclic systems, namely furo[3,2-c][1,2,4]triazolo[1,5-a]azepinium salts and furo[2,3-f][1,2,4]triazolo[1,5-a]azepinium picrates, were synthesized from bicyclic azo compounds and nitriles in the presence of antimony pentachloride or aluminum chloride. The crystal diffraction analysis of an example product is reported and confirms the structure.

• 出版日期2007-1-4
• 单位复旦大学