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网站主页CAS数据库列表 108-27-0更多图谱5-甲基-2-吡咯酮(108-27-0)核磁图(13CNMR)

5-甲基-2-吡咯酮

产品名称 5-甲基-2-吡咯酮

CAS号108-27-0

分子式C5H9NO

分子量99.13

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  • Mass

    MS-NW-1751          
    5-methyl-2-pyrrolidone
    C5H9NO              (Mass of molecular ion:     99)
    

       Source Temperature: 240 °C
       Sample Temperature: 180 °C
       Reservoir, 75 eV
    

          14.0       1.3
          15.0       5.2
          18.0       1.3
          26.0       5.5
          27.0      22.7
          28.0      51.2
          29.0       9.6
          30.0     100.0
          31.0       1.4
          37.0       1.4
          38.0       2.6
          39.0      17.1
          40.0       5.4
          41.0      51.6
          42.0      43.5
          43.0      49.4
          44.0       2.7
          51.0       1.1
          52.0       1.1
          53.0       2.0
          54.0       3.0
          55.0      21.3
          56.0      10.9
          58.0       5.1
          68.0       1.3
          70.0      17.0
          71.0       7.1
          82.0       1.3
          98.0      10.8
          99.0      62.1
         100.0       4.5
    

400 MHz in CDCl3

90 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C5 H9 N O 0.035 g : 0.5 ml CDCl3
    5-methyl-2-pyrrolidone
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.31 B 3.792 C *1 2.35 D 2.34 E *1 2.27 F 1.649 G 1.230

         Hz     ppm     Int.
    

       1524.90   3.816     58
       1518.55   3.800    108
       1512.08   3.784    104
       1505.74   3.768     54
        950.56   2.379     36
        949.22   2.376    124
        945.80   2.367    137
        943.36   2.361    157
        940.06   2.353    108
        937.38   2.346    275
        934.45   2.339    109
        931.03   2.330    102
        929.57   2.326    171
        923.46   2.311     40
        920.78   2.304     41
        917.60   2.297     75
        915.89   2.292     73
        913.09   2.285     88
        908.08   2.273     65
        905.03   2.265     32
        902.10   2.258     53
        901.37   2.256     64
        900.27   2.253     53
        899.78   2.252     57
        895.02   2.240     45
        894.29   2.238     39
        893.92   2.237     39
        893.19   2.235     44
        669.19   1.675     61
        668.33   1.673     70
        666.75   1.669     57
        664.06   1.662     57
        661.87   1.657     66
        660.52   1.653     61
        658.81   1.649     71
        657.59   1.646     66
        655.15   1.640     52
        652.47   1.633     67
        649.90   1.627     52
        648.56   1.623     53
        646.61   1.618     48
        640.01   1.602     46
        494.87   1.239    969
        488.65   1.223   1000
    


  • 1H NMR 89.56 MHz
    C5 H9 N O 0.04 ml : 0.5 ml CDCl3
    5-methyl-2-pyrrolidone
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.37 B 3.79 C *1 2.48 to 2.05 D *1 1.64 E 1.229

         Hz     ppm     Int.
    

        342.31   3.823     70
        336.00   3.752     73
        217.63   2.430    106
        213.19   2.381     92
        212.25   2.370    265
        208.88   2.333    167
        208.00   2.323    278
        205.63   2.297    423
        204.31   2.282    105
        200.44   2.239     77
        197.63   2.207     76
        191.50   2.139     59
        156.13   1.744     69
        151.69   1.694     62
        149.63   1.671     92
        146.19   1.633     81
        145.31   1.623     59
        113.13   1.264   1000
        106.88   1.194    944
    

in CDCl3



CCl4 solution



KBr disc



liquid film



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