纳米催化剂和绿色化学路线(机械化学)的结合被用于生成一系列取代的1,1-双(2-苯基-3-吲哚基)乙烯衍生物(4a-e),这些衍生物是通过使各种2-芳基吲哚反应而合成的(1a–e)和无水乙醇中的乙酰氯,有或没有ZnO纳米作为催化剂,通过两种方法进行,即经典方法和绿色无溶剂方法。就短的反应时间和温和的反应条件以及催化剂的可再利用性而言,ZnO纳米颗粒的使用优于不存在催化剂。根据其元素和光谱数据(IR,质子磁共振,13 C NMR和质量)对所有合成的化合物进行表征。
2,2'-Diphenyl-3,3'-diindolylethylene (DPDIE) derivatives 3a-g were regioselectively prepared in one pot from indoles 1a-g in the presence of Lewis acids and were subsequently evaluated for cytotoxic activity against human leukemic cell lines, U937 and K562. The most potent compound 3g exhibited IC50 of 13.0-17.0 mu M. (C) 2011 Elsevier Ltd. All rights reserved.