Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
권호 표지
DOI QR코드

DOI QR Code

Formation and Properties of Dimethylamine Complexes of Palladium(II) Having trans Phosphorus Spanning Terdentate Ligands

  • Published : 1997.11.20
Download PDF
⟨ Previous Next ⟩

Abstract

Dimethylamine complexes of palladium(Ⅱ) [(PCP)Pd(NHMe2)](OTf) (PCP = 2,6-(R2PCH2)2C6H3); R = Ph (1), R = Cy (2)), have been prepared from the reaction of (PCP)Pd(OTf) and dimethylamine. The complex 1 is stable both in solution and in the solid state, while 2 is stable only in solution in the presence of dimethylamine although the formation of 2 in solution is quantitative by NMR Spectroscopy. A solution NMR spectroscopic study shows that dimethylamine favors over carbon monoxide in the coordination sphere of palladium(Ⅱ) having rigid terdentate ligands. The complexes 1 and 2 in chlorinated solvents undergo a chlorine abstract reaction yielding Pd(2,6-(R2PCH2)2C6H3)Cl in the presence of a base such as dimethylamine and DABCO (diazabicyclooctane), in which a transient dimethylamido palladium(Ⅱ) species likely involves.

Keywords

References

  1. Coord. Chem. Rev. v.95 Fryzuk, M. D.;Montgomery, C. D.
  2. Chem. Rev. v.88 Brynza, H. E.;Tam, W.
  3. Chem. Rev. v.92 Roundhill, D. M.
  4. Tetrahedron Lett. Baiker, A.;Richarz, W.
  5. Polyhedron v.9 Ganguly, S.;Roundhill, D. M.
  6. Organometallics v.15 Louie, J.;Paul, F.;Hartwig, J. F.
  7. Principles and Applications of Organotransition Metal Chemistry Collman, J. P.;Hegedus, L. S.;Norton, J. R.;Finke, R. G.
  8. Adv. Chem. Ser. v.62 Watt, G. W.;Upchurch, D. G.
  9. Inorg. Chem. v.9 Anderson, J. S.;Carmichael, J. W.;Cordes, A. W.
  10. Polyhedron v.14 Abel, E. W.;Goldsworthy, D. H.;Heard, P. J.;Kite, K.
  11. Organometallics v.14 Paul, F.;Patt, J.;Hartwig, J. F.
  12. J. Organomet. Chem. v.259 Rimml, H.;Venanzi, L. M.
  13. J. Organomet. Chem. v.487 Cross, R. J.;Kennedy, A. R.;Muir, K. W.
  14. Chem. Rev. v.9 Verkade, J. G.
  15. Bull. Korean Chem. Soc. v.17 Yun, J. G.;Seul, J. M.;Lee, K. D.;Kim, S.;Park, S.
  16. Chem. Rev. v.81 Garrou, P. E.