(GO-Fe3O4) nanocomposite has been prepared and characterized by FT-IR, TEM and VSM techniques, and its catalytic activity has been evaluated in the multi-component synthesis of two series of indene derivatives. The three-component condensation of ninhydrin/isatin, malononitrile and active methylene-containing compounds and also the four-component condensation of ninhydrin, o-phenylenediamines, malononitrile
制备了聚
苯乙烯(PS)包覆的磁性氧化
石墨烯(GO-Fe 3 O 4)纳米复合材料,并通过FT-IR,
TEM和VSM技术对其进行了表征,并在两个系列的多组分合成中评估了其催化活性。
茚衍
生物。在PS @ GO-Fe存在下,令人满意地进行了
茚三酮/
靛红,
丙二腈和含活性亚甲基的化合物的三组分缩合,以及
茚三酮,
邻苯二胺,
丙二腈和含活性亚甲基的化合物的四组分缩合。3 O 4磁性纳米复合材料,以及相应的2'-
氨基螺[indene-2,4'-
吡喃] -3'-腈,2'-
氨基螺[二氢
吲哚-3、4'-
吡喃] -3'-腈和2' -aminospiro [indeno [1,2-分别以良好至优异的产率获得了b ]
喹喔啉-11,4'-
吡喃] -3'-腈。与所报道的方法相比,反应时间非常短,易于后处理程序以及催化剂的易于分离和可重复使用性是当前方法的显着优势。