First used of Alkylbenzimidazole-Cobalt(II) complexes as a catalyst for the N-Alkylation of amines with alcohols under solvent-free medium
作者:Neslihan Şahin、İlkay Yıldırım、Namık Özdemir、Nevin Gürbüz、İsmail Özdemir
DOI:10.1016/j.jorganchem.2020.121285
日期:2020.7
In this study, alkylbenzimidazole-cobalt(II)-catalyzed direct N-alkylation reactions of amines with alcohols derivatives have been investigated under solvent-free medium. For this purpose, a series of cobalt(II) complexes bearing N-alkylbenzimidazole complexes have been synthesized and novel complexes fully characterized by elemental analysis, FT-IR, 1H NMR and, 13C1H} NMR spectroscopies. Also, the
在这项研究中,已经在无溶剂的介质下研究了烷基苯并咪唑-钴(II)催化的胺与醇衍生物的直接N-烷基化反应。为此目的,已经合成了一系列带有N-烷基苯并咪唑配合物的钴(II)配合物,并且通过元素分析,FT-IR,1 H NMR和13 C 1 H} NMR光谱对新型配合物进行了充分表征。另外,配合物2a的结构已经通过X射线晶体学确认。通常,N-烷基化反应通常在甲苯中与各种金属配合物包括钴一起进行。在该配合物的催化研究中,2a-c在没有溶剂的条件下进行,醇既充当溶剂又充当反应物。相对于甲苯,在无溶剂的中等溶剂中已发现胺产物根据亚胺产物的转化率和对烷基化反应的选择性高。