Ni( i )–Ni( iii ) cycle in Buchwald–Hartwig amination of aryl bromide mediated by NHC-ligated Ni( i ) complexes

Intermediate amide complexes of NHC-ligated monovalent nickel in Buchwald–Hartwig amination of aryl halides were isolated and structurally characterized. The amide complexes reacted with aryl bromide to form a cross-coupling product. Low-temperature observation of the oxidative addition product of t...

Full description

Saved in:
Bibliographic Details
Published in:Catalysis science & technology 2019, Vol.9 (8), p.1784-1793
Main Authors: Inatomi, Takahiro, Fukahori, Yukino, Yamada, Yuji, Ishikawa, Ryuta, Kanegawa, Shinji, Koga, Yuji, Matsubara, Kouki
Format: Article
Language:English
Subjects:
Aromatic compounds
Catalysis
Cross coupling
Crystallography
Halides
Nickel
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Intermediate amide complexes of NHC-ligated monovalent nickel in Buchwald–Hartwig amination of aryl halides were isolated and structurally characterized. The amide complexes reacted with aryl bromide to form a cross-coupling product. Low-temperature observation of the oxidative addition product of the Ni( i ) amide complex with aryl bromide indicated the presence of a Ni( iii ) intermediate. The results showed that a well-defined mononuclear NHC–Ni( i ) complex can act as a key intermediate in homogeneous catalysis.
ISSN:2044-4753
2044-4761
DOI:10.1039/C8CY02427H