手性亚磷酸酯-膦配体的合成、与铑(Ⅰ)的配位性能及催化反应研究

Synthesis of A Chiral Phosphite-Phosphine Ligand,Its Coordination Behavior with Rhodium(Ⅰ) Cation and the Application in Catalytic Reaction

合成了具有立体和电子不对称结构的手性亚磷酸酯-膦配体,使用31P NMR和红外吸收光谱考察了其与金属铑(Ⅰ)离子的配位性能,并研究了得到的配合物对烯烃氢甲酰化反应的催化性能。获得了好的催化活性和区域选择性,但反应的对映选择性很低。

A chiral phosphite-phosphine ligand with steric and electronic asymmetry has been prepared. The coordination behavior of the ligand with rhodium （ Ⅰ ） cation was studied via ^31p NMR and infrared absorption spectra. The ligand-rhodium （ Ⅰ ） complex was used as the catalyst in the hydroformylation of olefins. Good catalytic activity and regio-selectivity were achieved, but the enantioselectivity of the reactions was low.