Two Reversible σ-Bond Metathesis Pathways for Boron-Palladium Bond Formation: Selective Synthesis of Isomeric Five-Coordinate Borylpalladium Complexes

摘要

Two reversible σ-bond metathesis pathways for B-B bond activation to give borylpalladium complexes are demonstrated in the reaction of η~2-(Si-H)Pd(0) complexes with B_2pin_(2.) These two pathways are connected by fluxional behavior of the Si-H bond and can be efficiently controlled by the appropriate choice of phosphine ligand, enabling the selective synthesis of two types of five-coordinate borylpalladium complexes.