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WebSite > CAS DataBase List  > 66086-33-7More Spectrum  >DI-TERT-BUTYL ACETYLENEDICARBOXYLATE(66086-33-7)IR1

  • Mass

    MS-NW-7551          
    di-tert-butyl acetylenedicarboxylate
    C12H18O4            (Mass of molecular ion:    226)
    

       Source Temperature: 260 °C
       Sample Temperature: 170 °C
       Reservoir, 75 eV
    

          15.0       1.4
          26.0       2.0
          27.0       4.0
          28.0       2.7
          29.0      10.4
          39.0       7.8
          40.0       1.7
          41.0      26.4
          42.0       1.3
          43.0       7.3
          44.0       8.6
          52.0       1.0
          53.0      11.5
          55.0       3.4
          56.0      17.0
          57.0     100.0
          58.0       4.5
          59.0      14.6
          80.0       2.4
          81.0       1.4
          97.0       3.4
         111.0       1.0
         125.0       1.6
         153.0       2.8
         155.0       1.5
    

parameter in CDCl3


  • 1H NMR 300 MHz
    C12 H18 O4 0.046 g : 0.5 ml CDCl3
    di-tert-butyl acetylenedicarboxylate
    ChemicalStructure
        Parameter     ppm  Hz
    D(A) 1.507

         Hz     ppm     Int.
    

        452.10   1.507   1000
    

in CDCl3



KBr disc



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