20913-25-1

2-甲基环丙烷-1-羧酸乙酯(20913-25-1)核磁图(¹³CNMR)

产品名称:2-甲基环丙烷-1-羧酸乙酯

CAS:20913-25-1

分子式:C7H12O2

分子量: 128.17

Mass

MS-NW-9558          
ethyl 2-methylcyclopropanecarboxylate
C7H12O2             (Mass of molecular ion:    128)

   Source Temperature: 240 °C
   Sample Temperature: 150 °C
   Reservoir, 75 eV

      26.0       1.8
      27.0      18.7
      28.0       5.5
      29.0      47.6
      30.0       1.2
      39.0      13.3
      40.0       1.8
      41.0       8.3
      42.0       3.0
      43.0       9.6
      45.0      13.9
      51.0       1.4
      53.0       8.2
      54.0      13.9
      55.0      81.1
      56.0      16.6
      57.0       4.4
      58.0       7.6
      60.0       1.4
      69.0       3.0
      71.0       2.0
      73.0       9.4
      81.0       3.6
      82.0      16.2
      83.0      94.3
      84.0       5.9
      85.0       4.3
      99.0       8.3
     100.0     100.0
     101.0      32.8
     102.0       2.1
     127.0       1.6
     128.0       7.3
     129.0       4.2

400 MHz in CDCl3

¹H NMR	399.65 MHz
C₇ H₁₂ O₂	0.05 ml : 0.5 ml CDCl₃
ethyl 2-methylcyclopropanecarboxylate

    Assign.     Shift(ppm)

      A             4.110
      B             1.37
      C             1.32
      D             1.255
      E             1.16
      F             1.108
      G             0.658
     
     ASSIGNED BY C-H COSY

     Hz     ppm     Int.

   1653.56   4.138    180
   1646.36   4.120    495
   1639.28   4.102    524
   1632.08   4.084    209
    560.79   1.404     36
    556.76   1.394     50
    554.57   1.388     53
    552.12   1.382     51
    550.78   1.379     68
    548.10   1.372     71
    546.14   1.367     60
    544.92   1.364     51
    544.56   1.363     56
    542.11   1.357     82
    540.41   1.353     37
    539.79   1.351     43
    538.70   1.348     30
    536.38   1.343     58
    535.77   1.341     67
    534.67   1.338     97
    530.03   1.327    157
    526.37   1.318    116
    521.85   1.306    144
    517.82   1.296     82
    514.40   1.288     35
    508.79   1.274    620
    501.59   1.256   1000
    494.51   1.238    585
    476.32   1.192     82
    470.09   1.177     60
    469.12   1.174    116
    464.97   1.164    127
    460.33   1.152    176
    456.30   1.142    116
    455.69   1.141     99
    451.66   1.131     88
    445.68   1.116    703
    439.58   1.100    647
    271.97   0.681     73
    267.94   0.671     74
    265.63   0.665     78
    263.92   0.661     77
    261.72   0.655     76
    259.89   0.651     73
    257.57   0.645     69
    253.54   0.635     63

in CDCl3