Solvent-dependent strong asymmetric amplification in the catalytic enantioselective Henry reaction using the trans-N,N′-bis-biphenyl-4-ylmethyl-cyclohexane-1,2-diamine-CuCl2 complex
Ruthenium(II)-NHC-catalyzed (NHC = perhydrobenzimidazol-2-ylidene) alkylation of amines using the hydrogen borrowing methodology under solvent-free conditions
作者:Murat Yiğit、Emine Özge Karaca、Beyhan Yiğit、Nevin Gürbüz、İsmail Özdemir
DOI:10.1007/s11243-019-00313-7
日期:2019.9
New ruthenium(II) complexes with N-heterocyclic carbeneligand were synthesized by transmetalation reactions between silver(I) N-heterocyclic carbene complexes and [RuCl2(p-cymene)]2. The complexes were characterized by physicochemical and spectroscopic methods. These ruthenium complexes were applied to the N-monoalkylation of aromatic amines with a wide range of primary alcohols under solvent-free
通过银 (I) N-杂环卡宾配合物和 [RuCl2(p-cymene)]2 之间的金属转移反应合成了具有 N-杂环卡宾配体的新型钌 (II) 配合物。通过物理化学和光谱方法对复合物进行了表征。使用借氢策略,在无溶剂条件下,将这些钌配合物应用于芳香胺与多种伯醇的 N-单烷基化反应。使用所有钌配合物的催化反应产生具有高选择性的 N-单烷基化产物,使用糠醇作为烷基化剂。