A three-component, intramolecular Ugi reaction toward unique indoloketopiperazines
作者:Mehdi Ghandi、Nahid Zarezadeh、Abuzar Taheri
DOI:10.1016/j.tetlet.2012.04.090
日期:2012.6
2-(3-Chloro-2-formyl-1H-indol-1-yl) acetic acid, as a bifunctional formyl-acid, is prepared in three steps. This compound undergoes a one-pot, four-center, three-component Ugi reaction with primary amines and alkyl isocyanides. A series of novel substituted indoloketopiperazine derivatives are obtained in moderate to high yields.
分三步制备作为双官能甲酰基酸的2-(3-氯-2-甲酰基-1 H-吲哚-1-基)乙酸。该化合物与伯胺和烷基异氰酸酯进行一锅,四中心,三组分的Ugi反应。以中等至高收率获得了一系列新颖的取代的吲哚并哌嗪衍生物。