纤维素基质嵌入铜修饰磁性生物纳米复合材料作为一种绿色催化剂在二氢吡啶和多氢喹啉的合成中的应用。
Cellulose matrix embedded copper decorated magnetic bionanocomposite as a green catalyst in the synthesis of dihydropyridines and polyhydroquinolines.
机构信息
Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran.
Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran.
出版信息
Carbohydr Polym. 2019 Mar 15;208:251-260. doi: 10.1016/j.carbpol.2018.12.069. Epub 2018 Dec 22.
A new biopolymer-based magnetic nanocomposite was prepared and characterized by Fourier transform infrared (FT-IR) spectroscopy, energy-dispersive X-ray (EDX) analysis, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images, inductively-coupled plasma atomic emission spectroscopy (ICP-AES) analysis, thermogravimetric/differential thermal (TG/DT) analysis and atomic force microscopy (AFM) image analysis. Then, it was applied as an efficient heterogeneous catalyst in two important three- and four-component one-pot organic condensation reactions for the synthesis of Hantzsch 1,4-dihydropyridine and polyhydroquinoline derivatives in high yields under solvent-free condition at room temperature. The first design and development of a low-leaching bionanostructure, easy separation and reusability of the nanocatalyst, simple work-up procedure, mild, green and environmentally friendly conditions are some important features and advantages of the present work.
一种新型的基于生物聚合物的磁性纳米复合材料通过傅里叶变换红外（FT-IR）光谱、能谱（EDX）分析、扫描电子显微镜（SEM）和透射电子显微镜（TEM）图像、电感耦合等离子体原子发射光谱（ICP-AES）分析、热重/差热（TG/DT）分析和原子力显微镜（AFM）图像分析进行了制备和表征。然后，它被用作一种高效的多相催化剂，在无溶剂条件下，在室温下，在两个重要的三组分和四组分一锅式有机缩合反应中，用于高效合成 Hantzsch 1,4-二氢吡啶和聚喹啉衍生物，产率很高。本工作的一些重要特点和优点包括：低浸出仿生纳米结构的首次设计和开发、纳米催化剂易于分离和重复使用、操作简单、温和、绿色环保等。
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