Compound 2a
tris(4-bromophenyl)aminium hexachloroantimonate
From: Ruthenium-catalysed oxidative conversion of ammonia into dinitrogen
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Synthetic procedure: See article for the definitive version of this procedure and for full experimental details.
Oxidant [(4-BrC6H4)3N+•]SbCl6 (2a) was prepared according to literature methods (Yueh, W. & Bauld. N. L. Mechanistic criteria for cation radical reactions: aminium salt-catalyzed cyclopropanation. J. Am. Chem. Soc. 117, 5671-5676 (1995)).