Abstract

The direct supporting of Zn-arginine complex on magnetic core-shell nanostructures (Fe₃O₄@MCM-41@Zn-Arg) was reported as a novel, heterogeneous and excellent nanocatalyst, which applied for the oxidation reaction of sulfides to sulfoxides, oxidative coupling of thiols to their corresponding disulfides and the synthesis of 2,3-dihydroquinazolin-4(1H)-one derivatives under mild conditions. The structure of the catalyst was studied by X-Ray diffraction, Fourier transform-infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, atomic absorption spectroscopy, and vibrating sample magnetometry techniques. The simple experimental procedure, very good catalytic activity, low cost, and excellent recycling are the noteworthy features of the currently employed heterogeneous catalytic system.

抽象的

据报道，锌精氨酸络合物直接负载在磁性核-壳纳米结构（Fe ₃ O ₄ @ MCM-41 @ Zn-Arg）上，是一种新颖，均质且优异的纳米催化剂，可用于硫化物氧化成亚砜的反应，硫醇与其相应的二硫键的氧化偶联和2,3-二氢喹唑啉-4（1 H）-温和条件下的一种衍生物。通过X射线衍射，傅立叶变换红外光谱，热重分析，扫描电子显微镜，原子吸收光谱和振动样品磁强分析技术研究了催化剂的结构。简单的实验程序，非常好的催化活性，低成本和出色的回收利用是当前采用的多相催化体系的显着特征。