Co<sup>II</sup> immobilized on an aminated magnetic metal–organic framework catalyzed C–N and C–S bond forming reactions: a journey for the mild and efficient synthesis of arylamines and arylsulfides
作者:Arezou Mohammadinezhad、Batool Akhlaghinia
DOI:10.1039/c9nj03400e
日期:——
which benefit from small nanocrystalline size (10–30 nm, according to the XRD and TEM data) in combination with the coexistence of magnetic nanoparticles, a metal–organic framework, and cobalt species, were found to be an excellent environment catalyst to promote the C–N and C–S cross coupling reactions. A wide range of functional substrates including electron-withdrawing and electron-donating aryl halides
在这项工作中,我们报告了一种简单而通用的方法,用于逐步修改金属-有机骨架(NH 2 -MIL53(Al))。为了表征合成的纳米结构催化剂,已采用多种光谱和显微技术,包括FT-IR,XRD,BET,TEM,FE-SEM,EDX,EDX映射,TGA,XPS,VSM,ICP-OES和CHN。Fe 3 O 4 @ AMCA-MIL53(Al)-NH 2 -Co II纳米颗粒受益于较小的纳米晶体尺寸(根据XRD和TEM数据为10–30 nm),以及磁性纳米颗粒,金属-有机骨架和钴物种的共存,是一种极好的环境催化剂。促进C–N和C–S交叉偶联反应。包括吸电子和供电子芳基卤化物在内的各种功能性底物都与芳族/杂芳族/苄基和脂肪族胺与硫化物发生偶联反应。结果表明目标产物的收率良好至极好,并且该催化剂可以循环至少七次循环使用,而其催化活性却没有明显下降。此外,非均质性研究(例如热过滤和中毒试验)有效地证实了合