Mannich Bases as Enone Precursors for Water-Mediated Efficient Synthesis of 2,3,6-Trisubstituted Pyridines and 5,6,7,8-Tetrahydroquinolines
作者:Essam Hamied Ahmed Hanashalshahaby、Canan Unaleroglu
DOI:10.1021/acscombsci.5b00046
日期:2015.6.8
has been developed for water-mediated synthesis of 2,3,6-trisubstituted pyridines and 5,6,7,8-tetrahydroquinolines. The introduced method allows easy preparation of various polysubstituted pyridines and 5,6,7,8-tetrahydroquinolines via domino reaction of an enolizable ketone, ammonia and enones derived from different Mannich bases in mild reaction conditions. Montmorillonite K-10 promoted this one-pot
已经开发出一种高效,区域选择性和环境友好的方法,用于水介导的2,3,6-三取代吡啶和5,6,7,8-四氢喹啉的合成。通过在温和的反应条件下,可烯化的酮,氨和衍生自不同曼尼希碱的烯酮的多米诺反应,所引入的方法可轻松制备各种多取代的吡啶和5,6,7,8-四氢喹啉。蒙脱石K-10促进了这种一锅三组分反应,并以良好的收率得到了新的和已知的2,3,6-三取代的吡啶和5,6,7,8-四氢喹啉。该反应方案在容易应用和环境友好的条件下,由市售起始原料构建多取代吡啶和5,6,7,8-四氢喹啉具有广泛的功能性。