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Ruthenium Complexes of κ(P)- and κ(P)-η6-Coordinated KITPHOS Monophosphines: Efficient Catalysts for the Direct Ortho Arylation of 2-Phenylpyridine and N-Phenylpyrazole with Aryl Chlorides

Lookup NU author(s): Dr Simon Doherty, Dr Julian Knight, Nicholas Ward, Dr Ross Harrington

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Abstract

Thermolysis of the P-coordinated KITPHOS monophosphine complex [(p-cymene)RuCl2(KITPHOS)] in chlorobenzene at 120 ºC resulted in displacement of the p-cymene to afford [{k(P)-h6-KITPHOS}RuCl2], the first example of a constrained geometry complex in which the k(P)-bonded phosphino group and the h6-coordinated proximal phenyl ring are connected by an unsaturated two-carbon tether; both complexes form efficient catalysts for the direct ortho arylation of 2-phenylpyridine and N-phenylpyrazole with a range of aryl chlorides.


Publication metadata

Author(s): Doherty S, Knight JG, Addyman CR, Smyth CH, Ward NAB, Harrington RW

Publication type: Article

Journal: Organometallics

Year: 2011

Volume: 30

Issue: 21

Pages: 6010-6016

ISSN (print): 0276-7333

ISSN (electronic): 1520-6041

Publisher: American Chemical Society

URL: http://dx.doi.org/10.1021/om200843f

DOI: 10.1021/om200843f


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