Versatile (η-arene)Ni(PCy) nickel monophosphine precursors

Nickel monophosphine arene adducts have been proposed as highly reactive intermediates capable of difficult C-O bond activation steps in Ni catalyzed cross-coupling reactions. The addition of N -methylmorpholine N -oxide to arene solutions of ([Cy 3 P) 2 Ni] 2 N 2 allows for the synthesis of stable...

Full description

Saved in:
Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2017-12, Vol.53 (98), p.13176-13179
Main Authors: Zhu, Sha, Shoshani, Manar M, Johnson, Samuel A
Format: Article
Language:English
Subjects:
Activation
Adducts
Catalysis
Chemical reactions
Cross coupling
Nickel
Precursors
Viability
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:Nickel monophosphine arene adducts have been proposed as highly reactive intermediates capable of difficult C-O bond activation steps in Ni catalyzed cross-coupling reactions. The addition of N -methylmorpholine N -oxide to arene solutions of ([Cy 3 P) 2 Ni] 2 N 2 allows for the synthesis of stable (η 6 -arene)Ni(PCy 3 ) complexes. The isolation of these species demonstrates their viability as intermediates and provides an experimental means to test the hypothesized importance of the Ni(PCy 3 ) moiety in bond activation and catalysis. Revisiting the solution behaviour of [(PCy 3 ) 2 Ni] 2 N 2 reveals a facile synthesis for the versatile Ni(PCy 3 ) transfer reagents, (η 6 -arene)Ni(PCy 3 ).
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc08416a