Polystyrene stabilized iridium nanoparticles catalyzed chemo- and regio-selective semi-hydrogenation of nitroarenes to N-arylhydroxylamines
作者:Dhananjay Bhattacherjee、Shaifali、Ajay Kumar、Grigory V. Zyryanov、Pralay Das
DOI:10.1016/j.mcat.2021.111836
日期:2021.9
Polystyrene stabilized Iridium (Ir@PS) nanoparticles (NPs) as a heterogeneous catalyst have been developed and characterized by IR, UV–Vis, SEM, TEM, EDX and XRD studies. The prepared Ir@PS catalyst showed excellent reactivity for chemo- and regio-selective controlled-hydrogenation of functionalized nitroarenes to corresponding N-arylhydroxylamine using hydrazine hydrate as reducing source and environmentally
聚苯乙烯稳定的铱 (Ir@PS) 纳米粒子 (NPs) 作为多相催化剂已被开发并通过 IR、UV-Vis、SEM、TEM、EDX 和 XRD 研究进行表征。制备的 Ir@PS 催化剂在使用水合肼作为还原源和环境友好的聚乙二醇 (PEG-400) 作为绿色溶剂将官能化硝基芳烃化学和区域选择性控制氢化成相应的 N-芳基羟胺方面表现出优异的反应活性。本方法应用于广泛的底物范围,并发现与广泛的可还原官能团兼容。反应在 85 °C 或环境温度下进行,并在 5–80 分钟内完成。催化剂可以很容易地从反应混合物中滤出并可重复使用。