Reactions of oxo- and peroxo-molybdenum complexes with B(C6F5)3: crystal structures of cis-[MoO{OB(C6F5)3}(η2-ONEt2)2] and cis-[MoO{OB(C6F5)3}{η2-PhN(O)C(O)Ph}2]

(Note: The full text of this document is currently only available in the PDF Version )

Linda H. Doerrer, Jane R. Galsworthy, Malcolm L. H. Green, Michael A. Leech and Matthias Müller


Abstract

The oxometal complexes [MoO22-O-NR2)2], R = Et or CH2Ph, reacted with the strong Lewis acid B(C6F5)3 at their oxo functionality to give cis-[MoO{OB(C6F5)3}(η2-ONR2)2], (R = Et 1 or CH2Ph 2). Reaction of the peroxo complex [MoO(O2){η2-PhN(O)C(O)Ph}2] with the same Lewis acid led initially to the formation of [MoO(O2){B(C6F5)3}{η2-PhN(O)C(O)Ph}2] 3, which decomposes to form [MoO{OB(C6F5)3}{η2-PhN(O)C(O)Ph}2] 4. Compounds 1 and 4 have been characterised by X-ray crystallography.


References

  1. For reviews concerning transition-metal catalysis of epoxidation reactions see: J. E. Lyons, in Aspects of Homogeneous Catalysis, ed. R. Ugo, Reidel, Dordrecht, Boston, 1977, vol. 3, ch. 1 and refs. therein Search PubMed; R. A. Sheldon and J. K. Kochi, Metal Catalyzed Oxidations of Organic Compounds, Academic Press, New York, 1981 Search PubMed.
  2. (a) S. Chan-Cheng, J. W. Reed and E. S. Gould, Inorg. Chem., 1973, 12, 337 CrossRef; (b) R. A. Sheldon, Recl. Trav. Chim. Pays-Bas, 1973, 92, 253, 367 CAS; (c) R. A. Sheldon and J. A. Van Doorn, J. Catal., 1973, 31, 427 CrossRef CAS; (d) M. N. Sheng and J. G. Zajacek, Adv. Chem. Ser., 1968, 76, 418 Search PubMed; (e) M. N. Sheng and J. G. Zajacek, J. Org. Chem., 1970, 35, 1839 CrossRef CAS; (f) T. N. Baker, G. J. Mains, M. N. Sheng and J. G. Zajacek, J. Org. Chem., 1973, 38, 1145 CrossRef CAS; (g) G. R. Howe and R. R. Hiatt, J. Org. Chem., 1971, 36, 2493 CrossRef; (h) J. Sobczak and J. Ziolkowski, Inorg. Chim. Acta, 1976, 19, 15 CrossRef CAS.
  3. (a) K. Wieghardt, W. Holzbach, J. Weiss, B. Nuber and B. Prikner, Angew. Chem., Int. Ed. Engl., 1979, 18, 548 CrossRef; (b) P. Jaitner, W. Huber, A. Gieren and H. Betz, Z. Anorg. Allg. Chem., 1986, 538, 53 CrossRef CAS; (c) K. Wieghardt, W. Holzbach, E. Hofer and J. Weiss, Inorg. Chem., 1981, 20, 343 CrossRef CAS; (d) C. Redshaw, G. Wilkinson, B. Hussain-Bates and M. B. Hursthouse, J. Chem. Soc., Dalton Trans., 1992, 555 RSC; (e) K. Wieghardt, E. Hofer, W. Holzbach, B. Nuber and J. Weiss, Inorg. Chem., 1980, 19, 2927 CrossRef CAS.
  4. L. Saussine, H. Mimoun, A. Mitschler and J. Fisher, New J. Chem., 1980, 4, 235 Search PubMed.
  5. J. Fischer, J. Kress, J. A. Osborn, L. Ricard and M. Wesolek, Polyhedron, 1987, 6, 1839 CrossRef CAS; J. Kress, M. Wesolek, J.-P. Le Ny and J. A. Osborn, J. Chem. Soc., Chem. Commun., 1982, 514 RSC.
  6. J. R. Galsworthy, M. L. H. Green, M. Müller and K. Prout, J. Chem. Soc., Dalton Trans., 1997, 1308 Search PubMed; J. R. Galsworthy, J. C. Green, M. L. H. Green and M. Müller, J. Chem. Soc., Dalton Trans., 1998, 15 RSC.
  7. H. Tomioka, K. Takai, K. Oshima and H. Nozaki, Tetrahedron Lett., 1980, 21, 4843 CrossRef CAS.
  8. W. R. Thiel, Chem. Ber., 1996, 129, 575 CAS.
  9. A. N. Chernega, A. J. Graham, M. L. H. Green, J. Haggitt, J. Lloyd, C. P. Mehnert, N. Metzler and J. Souter, J. Chem. Soc., Dalton Trans., 1997, 2293 RSC.
  10. D. Gewirth, The HKL Manual, written with the co-operation of the program authors, Z. Otwinowski and W. Minor, Yale University, 1995 Search PubMed.
  11. E. Prince, Mathematical Techniques in Crystallography and Material Sciences, Springer, New York, 1982 Search PubMed.
  12. D. J. Watkin, C. K. Prout, J. R. Carruthers and P. W. Betteridge, CRYSTALS, Issue 10, Chemical Crystallography Laboratory, University of Oxford, 1996.
  13. International Tables for Crystallography, Kluwer, Dordrecht, 1992, vol. C Search PubMed.
Click here to see how this site uses Cookies. View our privacy policy here.