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2-溴-2',5'-二甲氧基苯乙酮

CAS号1204-21-3

分子式C10H11BrO3

分子量259.1

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  • Mass

    MS-NW-6334          
    2-bromo-2',5'-dimethoxyacetophenone
    C10H11BrO3          (Mass of molecular ion:    258)
    

       Source Temperature: 250 °C
       Sample Temperature: 190 °C
       Reservoir, 75 eV
    

          15.0       1.6
          18.0       2.3
          38.0       1.1
          39.0       3.0
          42.0       1.0
          43.0       1.2
          50.0       2.8
          51.0       5.6
          52.0       1.1
          53.0       4.0
          54.0       1.0
          62.0       2.0
          63.0       5.3
          64.0       3.6
          65.0       4.1
          66.0       3.6
          74.0       1.3
          75.0       1.5
          76.0       2.2
          77.0      11.8
          78.0       3.1
          79.0       5.2
          91.0       3.8
          92.0       6.2
          93.0       1.2
          94.0       1.4
         102.0       1.4
         105.0       1.3
         106.0       1.3
         107.0       9.6
         108.0       2.3
         109.0       1.8
         121.0       6.9
         122.0       7.4
         123.0       1.0
         135.0       2.0
         136.0       1.6
         148.0       1.2
         149.0       1.3
         150.0       6.0
         151.0       1.3
         164.0       2.0
         165.0     100.0
         166.0      10.5
         167.0       1.3
         180.0       1.6
         181.0       1.6
         183.0       1.5
         193.0       1.2
         258.0      13.1
         259.0       1.6
         260.0      13.0
         261.0       1.7
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C10 H11 Br O3 0.049 g : 0.5 ml CDCl3
    2-bromo-2',5'-dimethoxyacetophenone
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.352 B 7.070 C 6.945 D 4.604 E *1 3.904 F *1 3.789 J(A,B)=3.0HZ. J(A,C)=0.5HZ. J(B,C)=9.0HZ.

         Hz     ppm     Int.
    

        660.38   7.374     74
        659.88   7.369     73
        657.44   7.341     98
        656.88   7.335     92
        641.31   7.161     59
        638.31   7.128     32
        632.31   7.061    153
        629.31   7.027    138
        624.13   6.969    117
        623.75   6.965    119
        615.06   6.868     34
        614.69   6.864     31
        412.38   4.605   1000
        349.69   3.905    852
        346.38   3.868     24
        339.44   3.791    978
    

in CDCl3



KBr disc



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