Electrophilic activation of difunctional aminoboranes: B–N coupling versus intramolecular Cl/Me exchange†‡
Bernd
Engels 
*b
and
Holger
Helten
*a
*b
and
Holger
Helten
*a
Abstract
Treatment of an N-silyl-B-chloro-aminoborane with substoichio-metric quantities of Me3SiOTf afforded B–N coupling, whereas activation with 5 mol% of Ag[Al{OC(CF3)3}4] led to Cl/Me exchange between the boron and the silicon center. Combined experimental and computational studies of the latter process support a chain reaction that is initiated by nucleation-limited chloride abstraction.
- This article is part of the themed collection: Boron Chemistry in the 21st Century: From Synthetic Curiosities to Functional Molecules
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