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1,6-二氧杂螺[4.4]壬烷-2,7-二酮

CAS号3505-67-7

分子式C7H8O4

分子量156.14


  • Mass

    MS-IW-0083          
    1,6-dioxaspiro(4.4)nonane-2,7-dione
    C7H8O4              (Mass of molecular ion:    156)
    

       Source Temperature: 260 °C
       Sample Temperature: 150 °C
       Reservoir, 75 eV
    

          17.0       1.2
          18.0       6.0
          26.0       5.9
          27.0      16.1
          28.0      70.5
          29.0      10.2
          39.0       2.7
          41.0       2.9
          42.0      16.9
          43.0       4.1
          44.0       1.5
          45.0       1.5
          53.0       1.3
          54.0       3.4
          55.0      34.2
          56.0     100.0
          57.0      39.9
          58.0       1.6
          67.0       1.9
          69.0       2.5
          70.0      10.0
          73.0       4.0
          83.0       6.5
          84.0      16.2
          85.0       1.3
          97.0       2.6
         101.0      21.5
         111.0       2.2
         112.0      91.5
         113.0       6.2
         157.0       2.6
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C7 H8 O4 0.034 g : 0.5 ml DMSO-d6
    1,6-dioxaspiro(4.4)nonane-2,7-dione
    ChemicalStructure
        Assign.     Shift(ppm)
    A *1 2.795 B *1 2.618 C *2 2.50 D *2 2.45

         Hz     ppm     Int.
    

       1137.94   2.848    203
       1128.05   2.823    533
       1120.12   2.803    352
       1118.41   2.799    311
       1110.23   2.779    630
       1100.71   2.755    445
       1059.81   2.652    290
       1056.15   2.643    374
       1051.51   2.632    387
       1047.85   2.622    439
       1041.87   2.607    166
       1038.57   2.599    195
       1033.45   2.586    252
       1030.15   2.578    297
       1015.99   2.543    194
       1007.45   2.521     51
       1006.10   2.518    143
       1002.20   2.508    807
        993.77   2.487   1000
        992.31   2.483    575
        990.48   2.479    568
        987.92   2.472     44
        984.25   2.463    792
        980.71   2.454    491
        976.81   2.445     95
        970.58   2.429    110
        966.92   2.420     57
    

in DMSO-d6



KBr disc



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