Dean, NatalieMcIndoe, J. Scott2018-10-102018-10-1020182018Dean, N.L. & McIndoe, J.S. (2018). Fluoride-mediated rearrangement of phenylfluorosilanes. Canadian Journal of Chemistry, 96(6), 587-590. https://doi.org/10.1139/cjc-2017-0754https://doi.org/10.1139/cjc-2017-0754http://hdl.handle.net/1828/10151Combining Ph3SiF and fluoride ion under conditions used for the Hiyama coupling causes rapid formation of the expected [Ph3SiF2]−; however, real-time electrospray mass spectrometric analysis reveals that phenyl-fluoride exchange occurs concomitantly, also producing substantial quantities of [PhnSiF5–n]− (n = 0–2). The exchange process is verified using 19F NMR spectroscopy. This observation may have implications for Hiyama reaction protocols, which use transmetallation from triaryldifluorosilicates as a key step in cross-coupling.enmass spectrometryelectrospray ionizationfluorine NMRfluoridesilane/silicateexchangePostprintDepartment of Chemistry