In:
Angewandte Chemie, Wiley, Vol. 130, No. 37 ( 2018-09-10), p. 12110-12114
Abstract:
Reaction of PPh 3 and [( p ‐ClC 6 H 4 )N 2 ][BF 4 ] affords [( p ‐ClC 6 H 4 )N(PPh 3 )N(PPh 3 )][BF 4 ] 1 , while reaction with (Ph 2 PCH 2 ) 2 gave [( p ‐ClC 6 H 4 )(NPh 2 PCH 2 ) 2 )][BF 4 ] 2 . These species confirm the Lewis acidity of [( p ‐ClC 6 H 4 )N 2 (PR 3 )][BF 4 ] cations at N. In contrast, use of bulky phosphines afford the species [ArN 2 (PR 3 )][BF 4 ] (R= t Bu 3 , Mes 4 ). Compound 3 undergoes one electron reduction to give the stable radical [( p ‐ClC 6 H 4 )N 2 (P t Bu 3 )] . 5 . Combination of 3 and P t Bu 3 acts as an FLP to effect (SPh) 2 cleavage, generating [PhSP t Bu 3 ] + and the radical [ArN 2 (PR 3 )] . . Collectively, these data affirm the ability of the cations [ArN 2 (PR 3 )] + to behave as one or two electron acceptors.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v130.37
DOI:
10.1002/ange.201804183
Language:
English
Publisher:
Wiley
Publication Date:
2018
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