Copper-Catalyzed CH Oxidation/Cross-Coupling of α-Amino Carbonyl Compounds
作者:Ji-Cheng Wu、Ren-Jie Song、Zhi-Qiang Wang、Xiao-Cheng Huang、Ye-Xiang Xie、Jin-Heng Li
DOI:10.1002/anie.201109027
日期:2012.4.2
indoles selectively furnishes 1 and 2 with the aid of tert‐butyl hydroperoxide (TBHP). The method represents the first example of a copper‐catalyzedα arylation of α‐amino carbonyl substrates leading to α‐aryl α‐imino and α‐aryl α‐oxo carbonyl compounds using a CH oxidation strategy.
In the present paper, an efficient Cu-catalyzed regioselective acylation of indoles with phenylglyoxals was developed which is the first example of indolyl diketones synthesis by a heterogeneous catalyst. The magnetic polyacrylonitrile was synthesized through anchoring acrylonitrile monomers on Fe3O4 nanoparticles surface and then modified with 2-aminopyridine. At the final step, copper nanoparticles
在本文中,开发了一种有效的铜催化吲哚与苯基乙二醛的区域选择性酰化,这是通过非均相催化剂合成吲哚二酮的第一个例子。通过将丙烯腈单体锚定在Fe3O4纳米粒子表面,然后用2-氨基吡啶修饰合成磁性聚丙烯腈。在最后一步,将铜纳米颗粒固定在聚合物载体上,该聚合物载体含有来自聚丙烯腈的官能化腈基团的稳定配体。使用不同的技术,如傅里叶透射红外光谱、X 射线衍射、场发射扫描电子显微镜、透射电子显微镜和热重分析来证明聚合物催化剂的结构。最后,磁性 PAN Cu 催化剂作为一种高效的磁性非均相催化体系以良好至高产率合成 3-酰化吲哚的活性进行了研究。说明了多种 3-酰化吲哚衍生物的合成很容易获得这一重要的构件类。