Benzimidazole-based polyheterocycles from ninhydrin: Synthesis, X-ray crystal structure and photophysical property
作者:Suven Das、Purak Das、Suvendu Maity、Prasanta Ghosh、Bijan K. Paul、Arpita Dutta
DOI:10.1016/j.molstruc.2018.05.033
日期:2018.9
2-(3-(2-(1H-benzo[d]imidazole-2-yl)phenyl)quinoxalin-2-yl)-6-iodophenol 3 and 6-hydroxy-6-(2-methoxynaphthalen-1-yl)benzo [ 4 , 5 ]imidazo[2,1-a]isoquinolin-5(6H)-one 4 by IR, NMR and single crystal X-ray diffraction studies. Fluorescence measurements reveal that compound 3 and 4 display differential fluorescence behaviour, particularly towards the presence of Zn2+ ion.
摘要 茚三酮通过芳基茚三酮与邻苯二胺在酸性条件下的反应,成功地开发了两种不同的苯并咪唑包埋的杂环骨架。2-碘苯酚茚三酮加合物消耗2当量邻苯二胺得到苯并咪唑连接的喹喔啉骨架,在相同反应条件下相应的2-甲氧基萘加合物得到苯并咪唑并[2,1-a]异喹啉酮骨架。杂环化合物被鉴定为 2-(3-(2-(1H-benzo[d]imidazole-2-yl)phenyl)quinoxalin-2-yl)-6-iodophenol 3 和 6-hydroxy-6-(2-甲氧基萘-1-基)苯并[4,5]咪唑并[2,1-a]异喹啉-5(6H)-one 4 通过红外、核磁共振和单晶X射线衍射研究。荧光测量表明化合物 3 和 4 显示出不同的荧光行为,