131370-13-3Relevant academic research and scientific papers
VERBINDUNGEN MIT DEM 1,3-DIMETHYL-1,3-DIAZA-2-PHOSPHETIDIN-4-ON GRUNDGERUEST: SYNTHESE VON 1,3-DIMETHYL-2-PHENYLIMINO-1,3-DIAZA-2λ4-PHOSPHETIDIN-4-ON-DERIVATEN. ROENTGENSTRUKTURANALYSE VON 4,6-DIMETHOXY-5,10-DIPHENYL-1,3,7,9-TETRAMETHYL-1,3,5,7,9,10-HEXAAZA-4λ5,6λ5-DIPHOSPHA...
Breker, Johannes,Jones, Peter G.,Schmutzler, Reinhard
, p. 193 - 202 (2007/10/02)
The reactions of a series of λ3P-diazaphosphetidinones (Y = NEt2: 1, N(CH2)4: 2, NPh2: 3, OMe: 4, N(cyc)2: 5), with phenyl azide are described.The initially formed 2-phenylimino-λ4P-diazaphosphetidinones, , are, except for the bulky dicyclohexyl derivative 12, unstable and dimerize rapidly to the corresponding diazadiphosphetidines, 7 and 9-11.The λ4P,λ5P-diazaphosphetidine 8 is formed from 7 in solution by elimination of MeN=C=NMe.The novel compounds 8-12 were characterized by analysis, n.m.r. and mass spectroscopy; additionally, an X-ray crystal structure analysis of 11 was carried out.The molecule possesses crystallographic twofold symmetry.The P-N bond lengths are 173.9, 179.2 pm (axial) and 168.3, 168.7 pm (equatorial).
