SPSiPs, a Class of Diphosphine Ligands Based on SPSiOL with a Large Dihedral Angle
作者:Hao Li、Peng-Gang Zhao、Cai-Yun Wang、Ruo-Yu Zhang、Jian-Jun Li、Yichen Wu、Peng Wang
DOI:10.1021/acs.orglett.3c01193
日期:2023.6.2
class of diphosphine ligands (SPSiPs) based on chiral spirosilabiindane diol (SPSiOL) are presented. Starting from SPSiOL, the diphosphine ligands could be readily prepared in three steps with high efficiency. This novel class of diphosphine ligands features rigid configuration, a large dihedral angle, a large P–M–P angle, and a long P–P distance. The potentials of SPSiPs in asymmetriccatalysis have also