Mass Spectrometric Studies of Reductive Elimination from Si(IV) Anions.

ABSTRACT: Reductive elimination (RE) is one of the most significant obstacles to developing main-group catalysts for bond coupling processes based on conventional oxidative addition/reductive elimination steps. Here, we report an electrospray ionisation mass spectrometry (ESI-MS) study demonstrating RE from Si^IV hydrosilicates [(tmim)SiH(OAr^R)]^- (tmimH₃ = tris(3-methylindol-2-yl)methane) generated in solution by oxidative addition of phenols (Ar^RO─H) to an anionic Si^II centre (silanide) incorporated in a bicyclic cage structure ([(tmim)Si]^-). The activation energy for the reductive elimination linearly decreased with the increasing electron-withdrawing character of the aryl substituents, suggesting that a negative charge de

SUBMITTER: Benzan Lantigua PA 

PROVIDER: S-EPMC12376247 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature