作者:Nagamani, Vediyappan、Kamaraj, Sriraghavan
DOI:10.1002/ejoc.202400575
日期:——
Herein, we report a mild Lewis acid-promoted regiospecific and reaction course-dependent transformation of 4-azido-coumarins/4-azido-2-quinolones/4-azido-thiocoumarin into structurally diversified C3-C4 fused imidazoles via single step and 5-substituted-1,4-benzodiazepines via two steps with 1,2-azide-nitrogen migration, through the transitory intermediacy of 2,3-bridged-2H-azirine and cyclic indium
在此,我们报告了通过一步和5步,温和的路易斯酸促进的区域特异性和反应过程依赖性将4-叠氮基-香豆素/4-叠氮基-2-喹诺酮/4-叠氮基-硫代香豆素转化为结构多样化的C3-C4稠合咪唑。 -取代的-1,4-苯二氮卓类化合物通过 1,2-叠氮化物-氮迁移的两步,通过 2,3-桥连-2 H-氮丙啶和环状铟络合物的短暂中间体。