Premium
A 1,2‐Addition Pathway for C(sp 2 )−H Activation at a Dinickel Imide
Author(s) -
Powers Ian G.,
Kiattisewee Cholpisit,
Mullane Kimberly C.,
Schelter Eric J.,
Uyeda Christopher
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201701855
Subject(s) - imide , chemistry , polymer chemistry
A dinickel imido complex was synthesized using a redox‐active naphthyridine‐diimine supporting ligand. Upon coordination of an external ligand, the Ni 2 core was disrupted, triggering an aromatic C−H activation reaction to generate a Ni 2 (μ‐NHAr)(Ar) species. This intermediate is capable of liberating free carbazole and phenanthridine products upon heating or treatment with excess t BuNC. Collectively, these studies establish a kinetically facile 1,2‐addition mechanism for C(sp 2 )−H activation, taking advantage of cooperative reactivity between two Ni centers.