Easy Access to Amides through Aldehydic C–H Bond Functionalization Catalyzed by Heterogeneous Co-Based Catalysts
作者:Cuihua Bai、Xianfang Yao、Yingwei Li
DOI:10.1021/cs501822r
日期:2015.2.6
synthesis strategy for amides by oxidative amidation of aldehydes is developed using a heterogeneous Co-based catalyst. The Co composite was prepared by simple pyrolysis of a Co-containing MOF, to obtain well-dispersed Co nanoparticles enclosed by carbonized organic ligands. The catalysts were characterized by powder X-ray diffraction (PXRD), N2 physical adsorption, atomic absorption spectroscopy (AAS)
使用非均相钴基催化剂,开发了一种通过醛的氧化酰胺化酰胺合成酰胺的新策略。通过简单地热解含Co的MOF来制备Co复合物,以获得被碳化的有机配体包围的分散良好的Co纳米颗粒。催化剂通过粉末X射线衍射(PXRD),N 2进行表征物理吸附,原子吸收光谱(AAS),透射电子显微镜(TEM),扫描电子显微镜(SEM)和X射线光电子能谱(XPS)。嵌入N掺杂碳中的小Co纳米颗粒高度分散,平均尺寸约为。7纳米。与商业来源相比,[电子邮件保护的]材料在醛的氧化酰胺化中显示出显着增强的催化活性。可以容易地以高至优异的产率获得一系列酰胺。发现该反应在温和的条件下通过自由基进行,酰胺产物中的羰基来自醛。而且,