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      Complex dependent regioselectivity in the nucleophilic substitution of fluorine of a coordinated tetrafluoropyridyl N-heterocycle carbene

      Pachal, Sam R.; Saunders, Graham C.; Weston, Jessica K.
      DOI
       10.1016/j.ica.2012.09.019
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      Pachal, S.R., Saunders, G.C. & Weston, J.K. (2011). Complex dependent regioselectivity in the nucleophilic substitution of fluorine of a coordinated tetrafluoropyridyl N-heterocycle carbine. Inorganica Chimica Acta, 394(1), 558-562.
      Permanent Research Commons link: https://hdl.handle.net/10289/6804
      Abstract
      The tetrafluoropyridyl substituent of the N-heterocycle carbene ligand 1-(2,3,5,6-tetrafluoropyridyl)-3-benzylimidazolin-2-ylidene has been shown to undergo nucleophilic attack when coordinated to rhodium or silver. For the complex Cp *RhCl ₂{κC-(4-NC ₅F ₄)NC ₃H ₂N(CH ₂C ₆H ₅)} nucleophilic attack occurred at the less activated position, meta to the pyridyl ring nitrogen atom. In contrast, for the silver complex [Ag{κC-(4-NC ₅F ₅)NC ₅H ₅N(CH ₅C ₆H ₅)}] + nucleophilic attack occurred ortho to the pyridyl ring nitrogen atom.
      Date
      2013
      Type
      Journal Article
      Publisher
      Elsevier
      Collections
      • Science and Engineering Papers [3122]
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