Cu(I)-phosphine complex: An efficient catalyst for synthesis of 3-indole derivatives through one-pot MCR under mild conditions
作者:Avvari N. Prasad、Felipe C. Braga、Rosângela da S. Lopes、Gleison A. Casagrande、Dênis P. de Lima、Adilson Beatriz
DOI:10.1080/00397911.2017.1394467
日期:2018.1.2
ABSTRACT An efficient copper (I) halotriphenylphosphine catalyzed one-pot multicomponent reaction (MCR) of 3-substituted indole derivatives has been developed using a variety of aldehydes (aromatic, aliphatic, and heteroaromatic), indole, and active methylene substrates such as malononitrile and ethyl 2-cyano acetate. This reaction proceeds smoothly and obtained good to excellent yields (68–93%) using
摘要 使用多种醛(芳香族、脂肪族和杂芳香族)、吲哚和活性亚甲基底物(如丙二腈和丙二腈)开发了一种高效的铜 (I) 卤代三苯基膦催化的 3-取代吲哚衍生物的一锅多组分反应 (MCR)。 2-氰基乙酸乙酯。在环境条件下,使用水作为绿色溶剂,该反应顺利进行并获得了良好的产率(68-93%)。所得产物经1H、13C NMR和质谱技术证实。一锅 MCR 通过形成 Knoevenagel 加合物然后迈克尔加成吲哚发生。图形概要