Synthesis and structures of neutral and cationic β-diketiminatoaluminium methyls†

Abstract

Trimethylaluminium with the β-diketimine H(LL) yields the aluminium complex [A[upper bond 1 start]l(LL[upper bond 1 end])Me₂], from which the salts [A[upper bond 1 start]l(LL[upper bond 1 end])Me(thf)][BMe(C₆F₅)₃]·0.5thf and [A[upper bond 1 start]l(LL[upper bond 1 end])Me(OEt₂)][B(C₆F₅)₄]·0.5Et₂O have been prepared, and crystallographically characterised.

References

1. Selected references: J. D. Scollard, D. H. McConville and J. Vittal, Macromolecules, 1996, 29, 5241; B. L. Small, M. S. Brookhart and A. M. A. Bennett, J. Am. Chem. Soc., 1998, 120, 4049; G. J. Britovskek, V. C. Gibson, B. S. Kimberley, P. J. Maddox, S. J. McTavish, G. A. Solan, A. J. P. White and D. J. Williams, Chem. Commun., 1998, 849 and references therein.
2. M. P. Coles and R. F. Jordan, J. Am. Chem. Soc., 1997, 119, 8125.
3. M. Bruce, V. C. Gibson, C. Redshaw, G. A. Solan, A. J. P. White and D. J. Williams, Chem. Commun., 1998, 2523.
4. E. Ihara, V. G. Young and R. F. Jordan, J. Am. Chem. Soc., 1998, 120, 8277.
5. D. Kottmair-Maieron, R. Lechler and J. Weidlein, Z. Anorg. Allg. Chem., 1991, 593, 111; R. Lechler, H.-D. Hausen and J. Weidlein, J. Organomet. Chem., 1989, 359, 1; M. P. Coles, D. C. Swenson, R. F. Jordan and V. G. Young, Organometallics, 1997, 16, 5183.
6. S. L. Aeilts, M. P. Coles, D. C. Swenson, R. F. Jordan and V. G. Young, Organometallics, 1998, 17, 3265.
7. H. V. R. Dias, W. Jin and R. E. Ratcliff, Inorg. Chem., 1995, 34, 6100.
8. B. Qian, D. L. Ward and M. R. Smith, Organometallics, 1998, 17, 3070.
9. M. P. Coles, D. C. Swenson, R. F. Jordan and V. G. Young, Organometallics, 1998, 17, 4042.
10. N. Emig, H. Nguyen, H. Krautscheid, R. Réau, J.-B. Cazaux and G. Bertrand, Organometallics, 1998, 17, 3599.
11. C. E. Radzewich, M. P. Coles and R. F. Jordan, J. Am. Chem. Soc., 1998, 120, 9384.
12. P. B. Hitchcock, M. F. Lappert and D.-S. Liu, J. Chem. Soc., Chem. Commun., 1994, 1699.
13. M. F. Lappert and D.-S. Liu, J. Organomet. Chem., 1995, 500, 203.
14. Cf. Y.-X. Chen, M. V. Metz, L. Li, C. L. Stern and T. J. Marks, J. Am. Chem. Soc., 1998, 120, 6287 and references therein.
15. P. B. Hitchcock, M. F. Lappert and S. Tian, J. Chem. Soc., Dalton Trans., 1997, 1945.