Herein, we report a series of easily accessible bidentate N-heterocyclic carbene (NHC) cobalt catalysts, which enable the hydrogenation of hindered alkenes under mild conditions. The four-coordinated bidentate NHC-Co(II) complexes were characterized by X-ray diffraction, elemental analysis, ESI-HRMS, and magnetic moment measurements, revealing a distorted-tetrahedral geometry and a high-spin configuration
在此,我们报告了一系列易于获得的双齿N-杂环卡宾(NHC)
钴催化剂,该
催化剂能够在温和条件下
氢化受阻
烯烃。通过X射线衍射,元素分析,ESI-HRMS和磁矩测量对四配位的双齿NHC-Co(II)配合物进行表征,揭示了扭曲的四面体几何形状和
金属中心的高自旋构型。从容易获得的NHC前体CoCl 2和NaHBEt 3获得的原位形成的催化体系的活性与明确定义的NHC-
钴催化剂的活性相同。这突出了该反应系统的潜在用途。