Reduction of (boryl)dibromosilane (boryl)SiHBr 2 (1; boryl = B(NArCH) 2 , Ar = 2,6-iPr 2 C 6 H 3 ) with 2 equiv of potassium graphite in DME at low temperature led to the isolation of bis(boryl)disilane (boryl)SiH 2 SiH 2 (boryl) (3) as a colorless solid, whereas reduction of (boryl)SiPhBr 2 (2) in THF gave the boryl-substituted disilene (boryl)-PhSiSiPh(boryl) (4) as a yellow solid. The reaction of 1 with 1,3diisopropyl-4,5-dimethylimidazol-2-ylidene (IiPr) unexpectedly led to the formation of the cationic species [(boryl)SiHBr(IiPr)] + Br − (6). These products were characterized by spectroscopic methods as well as by X-ray single-crystal analysis.
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