Ring Strain-Promoted Activation of Pyridines by a Saturated BSi₂ Cycle.

ABSTRACT: Ring strain is a well-established strategy to increase reactivity. Employing an elusive saturated BSi₂ ring motif, we here exploit the size mismatch between boron and silicon to this end. The reaction of disilenide Tip₂Si = SiTipLi with BH₃·SMe₂ selectively affords the lithium salt of anionic boratadisilirane c-SiTip₂SiHTipBH₂ ^- (Tip = 2,4,6-triisopropylphenyl), which according to DFT calculations on the parent system BSi₂H₆ ^- is much more strained than isoelectronic analogues such as cyclopropane (C₃H₆), boratirane (BC₂H₆ ^-), and cyclotrisilane (Si₃H₆). Indeed, it spontaneously and selectively activates a

SUBMITTER: Parvin N 

PROVIDER: S-EPMC12759225 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature