Tris(perfluorotolyl)borane-A Boron Lewis Superacid

Angewandte Chemie
Leif A KörteNorbert W Mitzel

Abstract

Tris[tetrafluoro-4-(trifluoromethyl)phenyl]borane (BTolF) was prepared by treating boron tribromide with tetrameric F3 CC6 F4 -CuI . The F3 CC6 F4 -CuI was generated from F3 CC6 F4 MgBr and copper(I) bromide. Lewis acidities of BTolF evaluated by the Gutmann-Beckett method and calculated fluoride-ion affinities are 9 and 10 %, respectively, higher than that of tris(pentafluorophenyl)borane (BCF) and even higher than that of SbF5 . The molecular structures of BTolF and BCF were determined by gas-phase electron diffraction, that of BTolF also by single-crystal X-ray diffraction.

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Citations

Jun 27, 2018·Chemistry : a European Journal·Lutz Greb
Apr 17, 2019·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·G Naaresh ReddySantanab Giri
Feb 27, 2020·Chemical Society Reviews·Jamie L CardenRebecca L Melen
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May 15, 2021·Organic & Biomolecular Chemistry·Di YouFrançois P Gabbaï
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Oct 27, 2021·Journal of the American Chemical Society·Deborah HartmannLutz Greb
Nov 19, 2021·Chemical Reviews·Alberto D ScaccabarozziThomas D Anthopoulos

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