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4-甲氧基-3-丁烯-2-酮

产品名称 4-甲氧基-3-丁烯-2-酮

CAS号4652-27-1

分子式C5H8O2

分子量100.12

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  • Mass

    MS-NW-5462          
    4-methoxy-3-buten-2-one
    C5H8O2              (Mass of molecular ion:    100)
    

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

          14.0       2.4
          15.0      11.0
          26.0       3.5
          27.0      11.1
          28.0       2.6
          29.0       8.7
          31.0       8.3
          38.0       1.3
          39.0       3.2
          41.0       1.8
          42.0      10.3
          43.0      36.5
          44.0       1.1
          47.0       1.5
          53.0       4.5
          54.0       1.2
          55.0       1.5
          57.0       2.4
          58.0       1.4
          59.0       5.0
          69.0       2.6
          71.0       6.0
          75.0       6.3
          85.0     100.0
          86.0       4.8
         100.0      13.8
         101.0       2.4
         117.0       1.2
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C5 H8 O2 0.04 ml : 0.5 ml CDCl3
    4-methoxy-3-buten-2-one
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.574 B 5.590 C 3.713 D 2.192 J(A,B)=12.9HZ. J(A,C)=0.4HZ.

         Hz     ppm     Int.
    

        685.56   7.655     91
        685.19   7.651     92
        672.69   7.512    104
        672.31   7.507    105
        506.75   5.659    132
        493.94   5.516    115
        332.75   3.716    729
        196.38   2.193   1000
        195.31   2.181    151
    

in CDCl3



liquid film