N-Benzylation of primary amines using magnetic Fe3O4 nanoparticles functionalized with hexamethylenetetramine as an efficient and recyclable heterogeneous catalyst
作者:Samira Noori、Ramin Ghorbani-Vaghei、Maryam Mirzaei-Mosbat
DOI:10.1016/j.molstruc.2020.128583
日期:2020.11
Abstract Herein we report, a new, simple and mild procedure for N-benzylation and N,N-dibenzylation of anilines through the reaction of aniline derivatives and benzyl bromide at 60 °C in EtOH in the presence of catalytic amounts of magnetic Fe3O4 nanoparticles functionalized with hexamethylenetetramine (Fe3O4@SiO2@Propyl-HMTA). The title compounds were formed in high purity and their structures characterized
摘要 在此我们报告了一种新的、简单和温和的方法,通过苯胺衍生物和苄基溴在 60 °C 下在 EtOH 中在催化量的功能化的磁性 Fe3O4 纳米颗粒存在下进行苯胺的 N-苄基化和 N,N-二苄基化。与六亚甲基四胺(Fe3O4@SiO2@Propyl-HMTA)。标题化合物以高纯度形成,其结构通过光谱分析表征。结果还表明,磁性纳米颗粒催化剂具有制备简单、非均质性、稳定性和可回收性等显着优点。此外,催化剂在反应后通过FT-IR、SEM、VSM、TEM、TGA和XRD等多种方法进行表征,以与反应前的结构进行比较。