Tris(2-methyl-1-aziridinyl)phosphine oxide

    Assign.     Shift(ppm)

      A             2.54
      B     *1      2.35
      C     *1      1.84
      D             1.27
     
     ASSIGNED BY C-H AND H-H COSY.
  

       ppm   Int.  Assign.

       31.73   402  P   1
       31.66   449  P   1
       31.61   463  P   1
       31.55   422  P   1
       31.46   921  P   1
                    P   2
       31.43   838  P   2
       31.39   827  P   1
       31.38   755  P   2
       31.36   652  P   2
       31.30   653  P   2
       31.22   651  P   2
       18.11   621  P   3
       18.09   631  P   3
       18.06   636  P   3
       18.04   643  P   3
       18.01  1000  P   3
       17.96   914  P   3
     
     Mixture of stereoisomers.
     Assigned by C-H COSY.