Phosphoric acid dimethyl(E)-1-propenyl ester

    Parameter     ppm  Hz

      D(A)         6.322
      D(B)         5.354
      D(C)         1.606
      D(X)         2.76
       J(A,B)         12.5
       J(A,C)         -1.83
       J(A,X)          5.20
       J(B,C)          6.97
       J(B,X)          1.45
       J(C,X)          1.60
     
      D(D)         3.75
      D(X)         2.76
       J(D,X)         11.5
     
     GAYDOU,E.M. & LLINAS,J.R. ORG.MAGN.RESON. 6, 23 (1974)
     P-31 REFERENCE:85% H3PO4 EXT.