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网站主页CAS数据库列表 108-97-4更多图谱吡喃-4-酮(108-97-4)核磁图(13CNMR)

吡喃-4-酮

产品名称 吡喃-4-酮

CAS号108-97-4

分子式C5H4O2

分子量96.08

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  • Mass

    MS2016-05312CW      
    4-pyrone
    C5H4O2              (Mass of molecular ion:     96)
    

       Source Temperature: 250 °C
       Sample Temperature: 250 °C
       Reservoir, 70 eV
    

          13.0       1.3
          14.0       6.1
          25.0       1.9
          26.0       6.8
          27.0       1.2
          29.0       5.7
          37.0       3.6
          38.0       3.9
          39.0       9.7
          40.0       5.9
          41.0       9.9
          42.0      31.7
          43.0       1.7
          44.0       2.1
          45.0       1.9
          46.0       2.1
          49.0       1.8
          50.0       2.6
          53.0       5.9
          54.0       1.5
          68.0      28.2
          69.0      50.9
          70.0      37.5
          71.0       2.1
          96.0     100.0
          97.0       7.7
    

in CDCl3

parameter in CDCl3




  • 1H NMR 300 MHz
    C5 H4 O2 ca 20 wt% in CDCl3
    4-pyrone
    ChemicalStructure
        Parameter     ppm  Hz
    D(A) 7.885 D(B) 6.375 J(A,A') 2.68 J(A,B) 5.96 J(A,B') 0.33 J(A',B) 0.33 J(A',B') 5.96 J(B,B') 1.05 BROWN,N.M.D. & BLADON,P. SPECTROCHIM.ACTA 21, 1277 (1965)

         Hz     ppm     Int.
    

       2370.73   7.902    145
       2368.67   7.896    974
       2367.62   7.892    497
       2367.11   7.890    489
       2363.94   7.880    496
       2363.43   7.878    506
       2362.38   7.875    999
       2360.32   7.868    150
       1917.69   6.392    150
       1915.64   6.385   1000
       1914.60   6.382    504
       1914.04   6.380    492
       1910.91   6.370    488
       1910.40   6.368    496
       1909.33   6.364    974
       1907.29   6.358    145
    

in CDCl3



KBr disc



liquid film