1-[Bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-Oxide Hexafluorophosphate (HATU)/Hydroxybenzotriazole (HOBT)-based One-Pot Cyclization of N-Substituted 2-Arylbenzimidazole Derivatives
作者:Y. T. Duan、T. H. Parmar、C. B. Sangani、A. S. Shah、R. K. Ameta
DOI:10.1134/s107042802005019x
日期:2020.5
AbstractA simple one-pot synthesis of N-substituted benzimidazoles from aromatic carboxylic acids and aromatic 1,2-diamines in the presence of 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxide hexafluorophosphate/hydroxybenzotriazole (HATU/HOBT) and N,N-diisopropylethylamine in DMF at 100°C, featuring good to excellent yields and easy workup, is developed. The protocol can
摘要在1- [双(二甲基氨基)亚甲基] -1 H -1,2,3-三唑[4,5 ]存在下,由芳族羧酸和芳族1,2-二胺简单地一锅合成N-取代的苯并咪唑- b ]吡啶鎓-3-氧化物六氟磷酸盐/羟基苯并三唑(HATU / HOBT)和ñ,ñ二异丙基乙胺在DMF中在100℃下,具有良好至优异的产量和容易后处理,进行显影。可以将方案缩放为克量,并且不需要色谱纯化。