One-pot Synthesis of Benzo[4,5]imidazo[1,2-<i>a</i>]pyridine Derivatives in Aqueous Conditions
作者:Maria A. Vodolazhenko、Anastasiia E. Mykhailenko、Nikolay Yu. Gorobets、Sergey M. Desenko
DOI:10.1002/jhet.2617
日期:2017.1
cyclic 1,3‐diketones, dimethylformamide dimethylacetal (DMFDMA) and 2‐(1H‐benzo[d]imidaz‐2‐yl)acetonitrile was found to be a highly selective process leading to 4‐oxo‐1,2,3,4‐tetrahydrobenzo[4,5]imidazo[1,2‐a]quinolin‐6‐yl cyanides. Optimized reaction conditions using water as solvent at room temperature or under microwave heating allowed high yields of the target products required no additional purification
发现环状1,3-二酮,二甲基甲酰胺二甲基乙缩醛(DMFDMA)和2-(1 H-苯并[ d ]咪唑-2-基)乙腈的一锅反应是高度选择性的过程,可导致4-氧代-1 ,2,3,4-四氢苯并[4,5]咪唑[1,2 - a ]喹啉-6-基氰化物。在室温下或在微波加热下使用水作为溶剂的优化反应条件可实现高收率的目标产物,无需进一步纯化。