Reactivity of the Bicyclic Amido-Substituted Silicon(I) Ring Compound Si₄ {N(SiMe₃ )Mes}₄ with FLP-Type Character.

ABSTRACT: The bicyclic amido-substituted silicon(I) ring compound Si₄ {N(SiMe₃ )Mes}₄ 2 (Mes=Mesityl=2,4,6-Me₃ C₆ H₂ ) features enhanced zwitterionic character and different reactivity from the analogous compound Si₄ {N(SiMe₃ )Dipp}₄ 1 (Dipp=2,6-ⁱ Pr₂ C₆ H₃ ) due to the smaller mesityl substituents. In a reaction with the N-heterocyclic carbene NHC Me 4 (1,3,4,5-tetramethyl-imidazol-2-ylidene), we observe adduct formation to give Si₄ {N(SiMe₃ )Mes}₄  ⋅ NHC Me 4 (3). This adduct reacts further with the Lewis acid BH₃ to yield the Lewis acid-base complex Si₄ {N(SiMe₃ )Mes}₄  

SUBMITTER: Schwedtmann K 

PROVIDER: S-EPMC9297995 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature