Using Ylide Functionalization to Stabilize Boron Cations.

ABSTRACT: The metalated ylide YNa [Y=(Ph₃ PCSO₂ Tol)^- ] was employed as X,L-donor ligand for the preparation of a series of boron cations. Treatment of the bis-ylide functionalized borane Y₂ BH with different trityl salts or B(C₆ F₅ )₃ for hydride abstraction readily results in the formation of the bis-ylide functionalized boron cation [Y-B-Y]⁺ (2). The high donor capacity of the ylide ligands allowed the isolation of the cationic species and its characterization in solution as well as in solid state. DFT calculations demonstrate that the cation is efficiently stabilized through electrostatic effects as well as π-donation from the ylide ligands, which results in its high stability. Despite the high stability of 2

SUBMITTER: Scherpf T 

PROVIDER: S-EPMC5363341 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature