Iron(I) in Negishi cross-coupling reactions

Adams, Christopher John, Bedford, Robin B., Carter, Emma ORCID: https://orcid.org/0000-0001-6691-2377, Gower, Nicholas J., Haddow, Mairi F., Harvey, Jeremy N., Huwe, Michael, Cartes, M. Angeles, Mansell, Stephen M., Mendoza, Carla, Murphy, Damien Martin ORCID: https://orcid.org/0000-0002-5941-4879, Neeve, Emily C. and Nunn, Joshua 2012. Iron(I) in Negishi cross-coupling reactions. Journal of the American Chemical Society 134 (25) , pp. 10333-10336. 10.1021/ja303250t

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Abstract

Herein we demonstrate both the importance of Fe(I) in Negishi cross-coupling reactions with arylzinc reagents and the isolation of catalytically competent Fe(I) intermediates. These complexes, [FeX(dpbz)2] [X = 4-tolyl (7), Cl (8a), Br (8b); dpbz = 1,2-bis(diphenylphosphino)benzene], were characterized by crystallography and tested for activity in representative reactions. The complexes are low-spin with no significant spin density on the ligands. While complex 8b shows performance consistent with an on-cycle intermediate, it seems that 7 is an off-cycle species.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	American Chemical Society
ISSN:	0002-7863
Funders:	EPSRC
Last Modified:	16 Oct 2024 10:18
URI:	https://orca.cardiff.ac.uk/id/eprint/38477

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