Molecular Diversity of Three-Component Reactions of Aromatic Aldehydes, Arylamines, and Acetylenedicarboxylates
作者:Jing Sun、Qun Wu、Er-Yan Xia、Chao-Guo Yan
DOI:10.1002/ejoc.201100008
日期:2011.6
The three-componentreactions of aromaticaldehydes, arylamines, and acetylenedicarboxylates show very interesting moleculardiversity. In an aqueous ethanol solution the three-componentreaction gave polysubstituted 2-hydroxyhydropyridines. In absolute ethanol 1,4-dihydropyridines were produced in satisfactory yields. Finally, under acid catalysis, this three-componentreaction afforded polysubstituted
3‐disulfonic acid‐functionalized magnetic Fe3O4 nanoparticles efficiently catalyse the one‐pot multi‐component synthesis of substituted 3‐pyrrolin‐2‐ones without using any other harmful organic reagents. High catalytic activity, ease of recovery, use of an external magnetic field and capability of being reused many times without significant loss of its catalytic activity are additional eco‐friendly properties
7-氨基萘-1,3-二磺酸功能化的Fe 3 O 4磁性纳米粒子可有效催化取代的3-吡咯啉-2-酮的一锅多组分合成,而无需使用任何其他有害有机试剂。高催化活性,易于回收,使用外部磁场以及能够多次重复使用而不会显着降低其催化活性的能力是该催化系统的其他环保特性。与其他方法相比,我们的方案具有多种优势,例如反应时间短,催化剂负载低,产率高,易于磁分离和催化剂的可重复使用性。