An Experimental Acidity Scale for Intramolecularly Stabilized Silyl Lewis Acids

Volume: 25, Issue: 66, Pages: 15123 - 15130
Published: Oct 31, 2019
Abstract
A new NMR-based Lewis acidity scale is suggested and its application is demonstrated for a family of silyl Lewis acids. The reaction of p-fluorobenzonitrile (FBN) with silyl cations that are internally stabilized by interaction with a remote chalcogenyl or halogen donor yields silylated nitrilium ions with the silicon atom in a trigonal bipyramidal coordination environment. The 19 F NMR chemical shifts and the 1 J(CF) coupling constants of these...
Paper Details
Title
An Experimental Acidity Scale for Intramolecularly Stabilized Silyl Lewis Acids
Published Date
Oct 31, 2019
Volume
25
Issue
66
Pages
15123 - 15130
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