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3,4-二氢-2-甲基-吡喃

产品名称 3,4-二氢-2-甲基-吡喃

CAS号4454-05-1

分子式C6H10O2

分子量114.14

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  • Mass

    MS-NW-1256          
    2-methoxy-3,4-dihydro-2H-pyran
    C6H10O2             (Mass of molecular ion:    114)
    

       Source Temperature: 260 °C
       Sample Temperature: 180 °C
       Reservoir, 75 eV
    

          15.0       5.2
          26.0       2.1
          27.0      12.5
          28.0      13.4
          29.0       8.2
          31.0       3.4
          39.0      10.4
          40.0       1.0
          41.0       5.7
          42.0       1.5
          43.0      15.9
          44.0       1.3
          45.0       4.7
          51.0       1.3
          53.0       6.1
          54.0       4.4
          55.0      11.2
          57.0       2.8
          58.0     100.0
          59.0       6.0
          61.0       1.3
          71.0       4.1
          81.0       6.1
          82.0      12.3
          83.0      16.6
          84.0       2.3
          85.0       1.1
          86.0       1.5
         114.0      23.7
         115.0       1.7
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C6 H10 O2 0.04 ml : 0.5 ml CDCl3
    2-methoxy-3,4-dihydro-2H-pyran
    ChemicalStructure
        Assign.     Shift(ppm)
    A 6.24 B 4.88 C 4.75 D 3.473 E 2.40 to 1.68

         Hz     ppm     Int.
    

        561.63   6.271     37
        555.38   6.202     43
        440.63   4.920     40
        437.44   4.885     67
        434.63   4.853     48
        311.00   3.473   1000
        180.75   2.019     42
        179.00   1.999     39
        178.00   1.988     39
        175.94   1.965     56
        171.88   1.920     59
        171.25   1.913     60
        167.94   1.876     68
        167.38   1.869     71
        164.19   1.834     62
        161.69   1.806     37
    

in CDCl3



CCl4 solution



liquid film