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N-苄氧羰基-D-天冬酰胺

产品名称 N-苄氧羰基-D-天冬酰胺

CAS号4474-86-6

分子式C12H14N2O5

分子量266.25

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  • Mass

    MS-NW-1952          
    N-benzyloxycarbonyl-D-asparagine
    C12H14N2O5          (Mass of molecular ion:    266)
    

       Source Temperature: 210 °C
       Sample Temperature: 210 °C
       Direct, 75 eV
    

          15.0       2.7
          16.0       5.8
          17.0       8.7
          18.0       2.4
          26.0       1.4
          27.0       3.3
          28.0       5.4
          29.0       1.0
          38.0       1.0
          39.0       5.8
          40.0       1.6
          41.0       4.6
          42.0       3.7
          43.0       5.8
          44.0       5.6
          50.0       2.1
          51.0       5.4
          52.0       1.8
          55.0       1.3
          63.0       2.7
          65.0      11.6
          69.0       3.0
          70.0       3.7
          72.0       1.1
          77.0       8.6
          78.0       2.0
          79.0      17.2
          80.0       1.7
          86.0       1.8
          87.0       1.2
          89.0       3.9
          90.0       8.1
          91.0     100.0
          92.0      10.4
         100.0       1.8
         105.0       1.7
         107.0      50.3
         108.0      34.3
         109.0       2.6
         112.0       1.0
         113.0       2.2
         114.0       1.3
         249.0      10.9
         250.0       1.5
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C12 H14 N2 O5 0.032 g : 0.5 ml DMSO-d6
    N-benzyloxycarbonyl-D-asparagine
    ChemicalStructure
        Assign.     Shift(ppm)
    A 13. B 7.48 C *1 7.40 D 7.34 E *1 6.95 F 5.032 G 4.354 J *2 2.562 K *2 2.459

         Hz     ppm     Int.
    

       2992.65   7.489    129
       2984.31   7.468    133
       2953.97   7.392     56
       2946.49   7.373    302
       2945.42   7.371    289
       2944.14   7.367    313
       2940.93   7.359   1000
       2937.51   7.351    178
       2935.81   7.346    153
       2932.39   7.338    134
       2930.04   7.332    109
       2928.33   7.328    100
       2925.12   7.320     77
       2923.84   7.317     86
       2919.14   7.305     45
       2918.71   7.304     45
       2777.89   6.951    102
       2011.41   5.033    581
       1750.93   4.382     42
       1745.59   4.368     51
       1743.02   4.362     82
       1737.47   4.348     80
       1734.90   4.342     56
       1729.56   4.328     42
       1036.80   2.595     49
       1031.45   2.581     58
       1021.20   2.556    101
       1016.07   2.543     96
        992.35   2.484    105
        984.44   2.464    106
        976.96   2.445     62
        969.06   2.425     58
    

in DMSO-d6



KBr disc