The first five-coordinate, square-pyramidal ruthenium complexes of the general formula [RuCl2(PPh3)2L] have been prepared, where L is a phosphoramidite ligand. The new complexes were employed as catalysts for the amination reactions of propargylic esters (18 h, at room temperature or 45 °C, Cs2CO3) to give propargylic amines in isolated yields up to 94%.
已制备出通式为[RuCl2(PPh3)2L]的前五个五配位、四方锥形的
钌配合物,其中L为膦酰胺
配体。这些新配合物被用作催化剂,用于
丙炔酯的
氨基化反应(18小时,室温或45°C,
碳酸铯),以高达94%的分离产率得到
丙炔胺。