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(E)-2-Butenoic acid isobutyl ester

Product Name (E)-2-Butenoic acid isobutyl ester

CAS73545-15-0

MFC8H14O2

MW142.2

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¹HNMR

¹³CNMR

IR1

Mass

MS2017-05389CM      
isobutyl trans-crotonate
C8H14O2             (Mass of molecular ion:    142)

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

      27.0       3.8
      28.0       3.4
      29.0       5.4
      38.0       1.2
      39.0      16.3
      40.0       2.9
      41.0      39.5
      42.0       2.3
      43.0       2.4
      55.0       4.0
      56.0      30.3
      57.0       5.1
      68.0       2.2
      69.0     100.0
      70.0       7.3
      73.0       2.4
      85.0       1.0
      86.0       1.0
      87.0      57.6
      88.0       2.6
      99.0       4.7
     112.0       1.0
     127.0       1.4

400 MHz in CDCl3

¹H NMR	399.65 MHz
C₈ H₁₄ O₂	0.05 ml : 0.5 ml CDCl₃
isobutyl trans-crotonate

    Assign.     Shift(ppm)

      A             6.981
      B             5.863
      C             3.911
      D             1.958
      E             1.883
      F             0.947

     Hz     ppm     Int.

   2801.64   7.011     68
   2794.80   6.994     70
   2786.13   6.972     75
   2779.17   6.955     74
   2353.52   5.889     32
   2351.81   5.885     82
   2350.10   5.881     83
   2348.51   5.877     32
   2338.01   5.851     31
   2336.30   5.846     79
   2334.59   5.842     78
   1566.53   3.920    348
   1559.81   3.903    364
    796.39   1.993     32
    789.67   1.976     62
    782.96   1.960     78
    776.25   1.943     64
    769.53   1.926     35
    756.84   1.894    283
    755.13   1.890    295
    750.00   1.877    294
    748.29   1.873    302
    385.86   0.966     75
    381.96   0.956    959
    379.27   0.950    115
    375.24   0.939   1000
    371.34   0.930     66
    370.12   0.927     42

in CDCl3

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