G. Heckmann et al., A FURTHER 2-LAMBDA(5),4-LAMBDA(5)-DIPHOSP HAPYRIDINE - -AMINO-1-AZA-2-LAMBDA(5),4-LAMBDA(5)-DIPHOSPHININE, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 53(4), 1998, pp. 443-447
2,2,4,4-Tetrakis-(dimethylamino)-6-amino-1-aza-2 lambda(5),4 lambda(5)
-diphosphinine (3) has been prepared by reacting 1,1,3,3-tetrakis(dime
thylamino)-1 lambda(5)-3 lambda(5)-diphosphete (1) with bis(trimethyls
ilyl)carbodiimide (2) in a 2 : 1 molar ratio. Properties, H-1, P-31, a
nd C-13 NMR, mass, and IR spectra are reported and discussed. Compound
3 is further characterized by X-ray structure analysis.