Cu(II) immobilized on Fe<sub>3</sub>
O<sub>4</sub>
-diethylenetriamine: A new magnetically recoverable catalyst for the synthesis of 2,3-dihydroquinazolin-4(1<i>H</i>
)-ones and oxidative coupling of thiols
作者:Lotfi Shiri、Arash Ghorbani-Choghamarani、Mosstafa Kazemi
DOI:10.1002/aoc.3596
日期:2017.5
Cu(II) immobilized on Fe3O4–diethylenetriamine was designed as a new, inexpensive and efficient heterogeneous catalyst for the synthesis of 2,3‐dihydroquinazolin‐4(1H)‐ones and the oxidative coupling of thiols. The structure of the nanomagnetic catalyst was comprehensively characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy
固定在Fe 3 O 4-二亚乙基三胺上的Cu(II)被设计为一种新型,廉价且有效的非均相催化剂,用于合成2,3-二氢喹唑啉-4(1 H)-与硫醇的氧化偶联。使用傅里叶变换红外光谱,扫描电子显微镜,能量色散X射线光谱,振动样品磁力分析,热重分析,X射线衍射和原子吸收光谱对纳米磁性催化剂的结构进行了全面表征。用可商购的材料简单地制备催化剂,高催化活性,简单操作,高收率,使用绿色溶剂,易磁分离和具有不变活性的催化剂可重复使用性使我们的方案成为一种绿色可行的合成策略。