Copper‐based Schiff Base Complex Immobilized on Core‐shell Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>as a magnetically recyclable and highly efficient nanocatalyst for green synthesis of 2‐amino‐4<i>H</i>‐chromene derivatives
作者:Hakimeh Ebrahimiasl、Davood Azarifar
DOI:10.1002/aoc.5359
日期:2020.3
Fe3O4‐supported copper (II) Schiff‐Base complex has been synthesized through post‐modification with 1,3‐phenylenediamine followed by further post‐modification with salicylaldehyde and coordination with Cu(II) ion. The resulted Fe3O4@SiO2‐imine/phenoxy‐Cu(II) magnetic nanoparticles (MNPs) were characterized by various techniques including SEM, TEM, XRD, XPS, EDX, VSM, FT‐IR, and ICP. The catalytic activity
Fe 3 O 4负载的铜(II)Schiff-Base配合物的合成方法是:先用1,3-苯二胺进行后修饰,然后再用水杨醛进行后修饰,再与Cu(II)离子配位。Fe 3 O 4 @SiO 2-亚胺/苯氧基-Cu(II)磁性纳米粒子(MNPs)通过各种技术进行表征,包括SEM,TEM,XRD,XPS,EDX,VSM,FT-IR和ICP。作为一锅三组分合成2-氨基-4 H的可磁循环利用的非均相催化剂的催化活性检验了chrome色烯衍生物。该催化剂在反应中是有效的,并且可以通过磁分离回收并循环几次而不会显着降低催化活性。