Half-sandwich ruthenium-carbene catalysts: Synthesis, characterization, and catalytic application in the N-alkylation of amines with alcohols
作者:Murat Kaloğlu
DOI:10.1016/j.ica.2019.119163
日期:2019.12
the synthesis and characterization of new half-sandwich ruthenium complexes containing oxygen functionalised N-aryl and N-alkyl benzimidazol-2-ylidene ligands have been reported. All ruthenium complexes were tested as catalysts for a wide range of substrates in the N-alkylation of secondary cyclic amines such as pyrrolidine and piperidine, and 4-methylaniline which was a primary aromatic amine with
摘要在这项研究中,已经报道了含有氧官能化的N-芳基和N-烷基苯并咪唑-2-亚烷基配体的新型半三明治钌络合物的合成和表征。所有的钌络合物都被用作催化剂,用于仲环胺(例如吡咯烷和哌啶)和4-甲基苯胺(它是通过醇借入醇与醇形成的芳香族伯胺)的N-烷基化反应中用于多种底物的催化剂。在无溶剂条件下,在120℃,16 h的条件下,以1 mol%的催化剂负载量进行催化反应。所有钌配合物均显示出优异的催化活性,并且选择性地获得了N-烷基化产物。