Synthesis and Application of Chiral Spiro Cp Ligands in Rhodium-Catalyzed Asymmetric Oxidative Coupling of Biaryl Compounds with Alkenes
作者:Jun Zheng、Wen-Jun Cui、Chao Zheng、Shu-Li You
DOI:10.1021/jacs.6b02302
日期:2016.4.27
application of chiral Cp ligands in asymmetric catalysis results in growing demand for novel chiral Cp ligands. Herein, we report a new class of chiral Cp ligands based on 1,1'-spirobiindane, a privileged scaffold for chiral ligands and catalysts. The corresponding Rh complexes are shown to be excellent catalysts in asymmetric oxidative coupling reactions, providing axially chiral biaryls in 19-97% yields
手性 Cp 配体在不对称催化中的大量应用导致对新型手性 Cp 配体的需求不断增长。在此,我们报告了一类新的基于 1,1'-spirobiindane 的手性 Cp 配体,这是一种用于手性配体和催化剂的特殊支架。相应的 Rh 配合物被证明是不对称氧化偶联反应中的出色催化剂,提供轴向手性联芳基化合物,产率为 19-97%,er 高达 98:2。