Journal of the Chemical Society. Perkin transactions II p. 1145 - 1150 (1988)
Update date:2022-07-29
Topics: Synthesis Crystal structure Imines Derivatives Structural characterization Nuclear magnetic resonance spectroscopy
Boyd, Derek R.
Malone, John F.
McGuckin, M. Rosaleen
Jennings, W. Brian
Rutherford, Mark
Saket, Barahman M.
The preparation of a new class of oxaziridines containing an N-phosphinoyl group is described.The compounds were obtained by peroxyacid oxidation of N-phosphinoyl imines under basic or neutral conditions, and characterised by n.m.r. spectroscopy.Revelant 2JPC, 3JPH, and 1JCH coupling constants are reported.An X-ray structure analysis of the title compound establishes that the 2-diphenylphosphinoyl group is trans to the 3-aryl ring.The P-N bond length (1.76 Angstroem) is abnormally high for an aminophosphorus(v) compound and the nitrogen atom is pyramidal (ΣN=280 deg).This geometry is interpreted in terms of an unusually low degree of ?-bonding between nitrogen and phosphorus due to the high s-character of the nitrogen lone pair.
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