Palladium-Catalyzed Asymmetric Addition of Diarylphosphines to α,β-Unsaturated Sulfonic Esters for the Synthesis of Chiral Phosphine Sulfonate Compounds
作者:Junzhu Lu、Jinxing Ye、Wei-Liang Duan
DOI:10.1021/ol402351c
日期:2013.10.4
Highly stereoselective addition of diarylphosphines to α,β-unsaturated sulfonic esters catalyzed through a PCP pincer–Pd complex is developed to synthesize chiral phosphine sulfonic esters with excellent enantioselectivity (up to 99.5% ee). The transformation of the chiral adduct into a useful palladium phosphine sulfonate complex is also demonstrated.
开发了通过PCP夹钳-Pd络合物催化的二芳基膦高立体选择性加成到α,β-不饱和磺酸酯上,以合成具有出色对映选择性(高达99.5%ee)的手性膦磺酸酯。还证明了手性加合物向有用的膦膦磺酸钯络合物的转化。