Triazolylidene Iron(II) Piano-Stool Complexes: Synthesis and Catalytic Hydrosilylation of Carbonyl Compounds
作者:Chloe Johnson、Martin Albrecht
DOI:10.1021/acs.organomet.7b00349
日期:2017.8.14
series of iron(II) piano stool complexes was synthesized that contain monodentate triazolylidene ligands with different aryl and alkyl substituents as well as an example of a C,N-chelating pyridine-substituted triazolylidene ironcomplex. The electronic and steric effect of wingtip modification was assessed by electrochemical, infrared spectroscopic, and X-ray diffraction analysis. All complexes were active
合成了一系列新的铁(II)钢琴凳子配合物,其中包含具有不同芳基和烷基取代基的单齿三唑亚基配体,以及一个C,N-螯合吡啶取代的三唑基亚铁配合物的实例。通过电化学,红外光谱和X射线衍射分析评估了翼尖修饰的电子和空间效应。所有配合物在醛和酮的催化氢化硅烷化中均具有活性。单齿体系远远胜过螯合的三唑亚基类似物,在催化剂负载量为0.1 mol%时,周转频率TOF max高达14400 h –1。机理研究表明,催化H-Si键活化的根本机理。