3-(TRIMETHYLSILYLOXY)CROTONIC ACID METHYL ESTER(62269-44-7) ¹H NMR

Product Name3-(TRIMETHYLSILYLOXY)CROTONIC ACID METHYL ESTER

CAS 62269-44-7

Molecular FormulaC8H16O3Si

Molecular Weight188.3

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¹HNMR

¹³CNMR

IR1

Mass

MS-IW-9100          
methyl 3-trimethylsilyloxy-2-butenoate
C8H16O3Si           (Mass of molecular ion:    188)

   Source Temperature: 220 °C
   Sample Temperature: 150 °C
   Reservoir, 75 eV

      15.0       3.8
      27.0       1.6
      28.0       2.0
      29.0       2.8
      31.0       1.7
      39.0       3.5
      42.0       1.9
      43.0      20.9
      44.0       4.4
      45.0      17.7
      46.0       1.2
      47.0       3.6
      55.0       1.8
      57.0       1.3
      58.0       2.4
      59.0      22.5
      60.0       2.1
      61.0       2.9
      67.0       1.5
      69.0       5.0
      71.0       3.7
      72.0       5.1
      73.0      68.0
      74.0       6.7
      75.0      13.1
      77.0       1.5
      79.0       1.1
      84.0       3.5
      85.0       2.3
      89.0      86.8
      90.0       7.3
      91.0       4.1
      99.0       7.1
     101.0       1.4
     105.0      13.2
     106.0       1.3
     113.0       1.9
     114.0       1.6
     115.0       4.2
     116.0       1.0
     131.0       1.1
     141.0       2.5
     143.0       1.4
     147.0       7.1
     148.0       1.1
     156.0       3.7
     157.0      21.2
     158.0       3.3
     159.0       1.0
     173.0     100.0
     174.0      13.0
     175.0       4.7
     188.0       2.8

400 MHz in CDCl3

¹H NMR	399.65 MHz
C₈ H₁₆ O₃ Si	0.05 ml : 0.5 ml CDCl₃
methyl 3-trimethylsilyloxy-2-butenoate

    Assign.     Shift(ppm)

      A             5.139
      B             3.658
      C             2.268
      D             0.270

     Hz     ppm     Int.

   2054.20   5.140    141
   2053.47   5.139    136
   1462.16   3.659    575
    906.98   2.270    436
    906.37   2.268    408
    111.45   0.279    185
    108.15   0.271   1000
    104.74   0.263    127

in CDCl3