SPSiPs, A New Class of Biphosphine Ligands Based on SPSiOL with a Large Dihedral Angle

12 April 2023, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Here, we demonstrate the development and the synthetic applications of a novel class of diphosphine ligands (SPSiP) based on chiral spirosilabiindane diol (SPSiOL). Starting from SPSiOL, the biphosphine ligands could be readily prepared in three steps with high efficiency. This novel class of biphosphine ligands features rigid configuration, a large dihedral angle, a large P–M–P angle, and a long P–P distance, which might possess unique catalytic reactivities. The potentials of SPSiPs in asymmetric catalysis have also been preliminary disclosed by Rh-catalyzed asymmetric hydrogenation, Rh-catalyzed tandem hydrosilylation, and Pd-catalyzed asymmetric allylic alkylation.

Keywords

SPSiP
SPSiOL
Diphosphine ligand
spirosilabiindane

Supplementary materials

Title
Description
Actions
Title
SI SPSiPLigand
Description
supporting information
Actions

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