Unraveling the reactivity of a cationic iminoborane: avenues to unusual boron cations.

ABSTRACT: A cationic terminal iminoborane [Mes*N[triple bond, length as m-dash]B ← IPr₂Me₂][AlBr₄] (3⁺[AlBr₄]^-) (Mes* = 2,4,6-tri-tert-butylphenyl and IPr₂Me₂ = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) has been synthesized and characterized. The employment of an aryl group and N-heterocyclic carbene (NHC) ligand enables 3⁺[AlBr₄]^- to exhibit both B-centered Lewis acidity and BN multiple bond reactivities, thus allowing for the construction of tri-coordinate boron cations 5⁺-12⁺. More importantly, initial reactions involving coordination, addition, and [2 + 3] cycloadditions have been observed for the cationic iminoborane, demonstrating the poten

SUBMITTER: Guo R 

PROVIDER: S-EPMC8864711 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature