Darvishi Atefeh, Bakhshi Hadi, Heydari Akbar
Chemistry Department, Tarbiat Modares University Tehran 14155-4838 Iran.
Department of Life Science and Bioprocesses, Fraunhofer Institute for Applied Polymer Research IAP Geiselbergstraße 69 14476 Potsdam Germany
RSC Adv. 2022 Jun 6;12(26):16535-16543. doi: 10.1039/d1ra09327d. eCollection 2022 Jun 1.
This study presents the conversion of bovine horn powder (BHP) as an available and low-cost waste material to a value-added highly recyclable catalyst. This green catalyst was prepared through the immobilization of BHP, as a natural keratin resource, on the magnetic FeO nanoparticles. The successful preparation of the catalyst was fully investigated using Fourier transform infrared, X-ray diffraction, and energy-dispersive X-ray spectroscopies as well as field emission scanning electron microscopy, vibrating sample magnetometry, and thermogravimetry. The catalytic efficiency of the prepared magnetic organocatalyst was evaluated in the synthesis of a large series of amide derivatives through the solvent-free transamidation reaction of different amides and amines with yields of 75-96%.
本研究展示了将牛角粉（BHP）这种可用的低成本废料转化为具有高附加值且可高度回收利用的催化剂。这种绿色催化剂是通过将作为天然角蛋白资源的BHP固定在磁性FeO纳米颗粒上制备而成。利用傅里叶变换红外光谱、X射线衍射、能量色散X射线光谱以及场发射扫描电子显微镜、振动样品磁强计和热重分析法对该催化剂的成功制备进行了全面研究。通过不同酰胺和胺的无溶剂转酰胺反应合成了一系列酰胺衍生物，以此评估所制备的磁性有机催化剂的催化效率，产率为75% - 96%。
