Vanadium(V) complexes based on a bis(pyridine)-imine ligand (HL); synthesis and crystal structure of a dioxovanadium(V) complex involving a ligand cyclisation

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Alette G. J. Ligtenbarg, Anthony L. Spek, Ronald Hage and Ben L. Feringa


Abstract

Synthesis and characterization of two novel dioxovanadium(V) complexes based on (2-hydroxybenzylidene)-di(2-pridin-2-yl)methylamine (HL) and 3-(2-hydroxyphenyl)-1-prydin-2-yl-imidazo-[1-5-a]-pryidine (HL′), which is the result of a vanadium-mediated oxidative cyclisation of HL, are reported.


References

  1. D. Rehder, Angew. Chem., Int. Ed. Engl., 1991, 30, 148 CrossRef; A. Butler and C. J. Carrano, Coord. Chem. Rev., 1991, 109, 61 CrossRef CAS.
  2. K. B. Sharpless and R. C. Michaelson, J. Am. Chem. Soc., 1973, 95, 6136 CrossRef CAS; K. B. Sharpless and T. R. Verhoeven, Aldrichim. Acta, 1979, 12, 63 Search PubMed; A. Butler, M. J. Clague and G. E. Meister, Chem. Rev., 1994, 94, 625 CrossRef CAS.
  3. K. Yamamoto, K. Oyaizu and E. Tsuchida, J. Am. Chem. Soc., 1996, 118, 12665 CrossRef CAS; K. Oyaizu, K. Yamamoto, K. Yoneda and E. Tsuchida, Inorg. Chem., 1996, 35, 6634 CrossRef CAS.
  4. Recently, Dr M. Döring(University of Jena) informed us about the copper mediated cyclisation of L.
  5. M. Renz, C. Hemmert, B. Donnadieu and B. Meunier, Chem. Commun., 1998, 1635 RSC.
  6. E. Niemers and R. Hiltmann, Synthesis, 1976, 593 CrossRef CAS.
  7. Complex 1 was stable for several weeks when stored under an atmosphere of dry argon.
  8. C. A. Root, J. D. Hoeschele, C. R. Cornman, J. W. Kampf and V. L. Pecoraro, Inorg. Chem., 1993, 32, 3855 CrossRef CAS.
  9. V. Conte, F. Di Furia and S. Moro, J. Mol. Catal. A, 1995, 104, 159 CrossRef CAS.
  10. G. Asgedom, A. Sreedhara, J. Kivikoski, J. Valkonen and C. P. Rao, J. Chem. Soc., Dalton Trans., 1995, 2459 RSC.
  11. D. D. Davey, J. Org. Chem., 1987, 52, 1863 CrossRef CAS.
  12. A. P. Krapcho and J. R. Powell, Tetrahedron Lett., 1986, 27, 3713 CrossRef CAS; M. T. Edgar, G. R. Pettit and T. S. Krupa, J. Org. Chem., 1979, 44, 396 CrossRef CAS; R. Grigg, P. Kennewell, V. Savic and V. Sridharan, Tetrahedron, 1992, 48, 10423 CrossRef CAS.
  13. J. Fossey, D. Lefort and J. Sorba, Free radicals in organic chemistry, John Wiley & Sons, New York, 1995 Search PubMed; T. Fukuda, F. Sakamoto, M. Sato, Y. Nakano, X. S. Tan and Y. Fujii, Chem. Commun., 1998, 1391 Search PubMed.
  14. M. Bonchio, V. Conte, F. Di Furia, G. Modena, S. Moro and J. O. Edwards, Inorg. Chem., 1994, 33, 1631 CrossRef CAS.
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