Structural authentication of an N-functionalised disecondary diphosphane

Abstract

The reaction of RPCl₂ [R = (6-Me-2-pyridyl)(SiMe₃)₂C^–] with LiAlH₄ in Et₂O gives the novel N-functionalised disecondary diphosphane compound [R(H)P–P(H)R] rather than the expected phosphorus dihydride complex RPH₂; the meso and rac isomers of the diphosphane crystallise separately with the meso isomer being structurally authenticated.

References

1. J. P. Albrand and C. Taïeb, Phosphorus Chemistry, Proceedings of the 1981 International Conference, ed. L. D. Quin and J. G. Verkade, ACS Symp. Ser. 171, American Chemical Society, Washington, DC, 1981.
2. R. A. Bartlett, H. V. R. Dias, K. M. Flynn, H. Hope, B. D. Murray, M. M. Olmstead and P. Power, J. Am. Chem. Soc., 1987, 109, 5693.
3. G. Huttner, H.-D. Müller, V. Bejenke and O. Orama, Z. Naturforsch., Teil B, 1976, 31, 1166.
4. P. G. Jones, H. B. Roesky, H. Grützmacher and G. M. Sheldrick, Z. Naturforsch. Teil B, 1985, 40, 590; J. P. Albrand and D. Gagnaire, J. Am. Chem. Soc., 1972, 94, 8630.
5. C. Couret, J. Escudie, H. Ranaivonjatovo and J. Satgé, Organometallics, 1986, 5, 113.
6. D. E. C. Corbridge, Phosphorus, An Outline of its Chemistry, Biochemistry and Technology, Elsevier, 1990, 4th edn., section 4.2.
7. S. Kurz and E. Hey-Hawkins, Organometallics, 1992, 11, 2729.
8. M. J. Henderson, Honours Thesis, University of Western Australia, 1985.
9. U. Kynast, B. W. Skelton, A. H. White, M. J. Henderson and C. L. Raston, J. Organomet. Chem., 1990, 384, C1.