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

  1. Lookup NU author(s)
  2. Dr Simon Doherty
  3. Dr Julian Knight
  4. Nicholas Ward
  5. Dr Ross Harrington
Author(s)Doherty S, Knight JG, Addyman CR, Smyth CH, Ward NAB, Harrington RW
Publication type Article
ISSN (print)0276-7333
ISSN (electronic)1520-6041
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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.
PublisherAmerican Chemical Society
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