Immobilization of copper(II) into polyacrylonitrile fiber toward efficient and recyclable catalyst in Chan-Lam coupling reactions
作者:Chenlu Zhang、Hai Zhu、Kaiyue Gang、Minli Tao、Ning Ma、Wenqin Zhang
DOI:10.1016/j.reactfunctpolym.2021.104831
日期:2021.3
significantly affected by the Cu loading. This catalytic system also displayed good activity in the synthesis of N-arylsulfonamides from arylboronic acids and tosyl azide. It was highly efficient in gram-scale reactions and could be reused five times. The advantages of low cost, easy preparation, good durability and facile recovery make the fiber catalyst attractive.
通过将Cu(II)固定化为脯氨酰胺改性的PANF(PAN PA-2 F),制备了一系列聚丙烯腈纤维(PANF)负载的铜(II)催化剂,随后将其用于从芳基硼酸中合成各种N-芳基咪唑酸和咪唑。制备的Cu(II)@PAN PA-2 Fs具有良好的机械强度,FT-IR,XRD,XPS和SEM表征。其中,CuCl 2 @PAN PA-2 F表现出优异的催化性能,其活性受到Cu含量的显着影响。该催化体系在合成N中也显示出良好的活性来自芳基硼酸和甲苯磺酰基叠氮化物的-芳基磺酰胺。它在克级反应中非常高效,可以重复使用五次。低成本,易于制备,良好的耐久性和容易回收的优点使纤维催化剂具有吸引力。