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Imidazo[1,2-a]pyrimidine

Product Name Imidazo[1,2-a]pyrimidine

CAS274-95-3

MFC6H5N3

MW119.12

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¹HNMR

parameter in CDCl3

parameter in H2O+HCl(0.5N)

parameter in CF3COOH

parameter in H2O+HCl(5N)

¹H NMR	300 MHz
C₆ H₅ N₃	0.5 M in CDCl₃
imidazo(1,2-a)pyrimidine

    Parameter     ppm  Hz

      D(A)         7.784
      D(B)         7.709
       J(A,B)          1.43
     
      D(C)         8.743
      D(D)         6.917
      D(E)         8.521
       J(C,D)          6.75
       J(C,E)          2.07
       J(D,E)          4.10
     
     MARCHETTI,L. ET AL. ORG.MAGN.RESON. 7, 455 (1975)

     Hz     ppm     Int.

   2627.34   8.758    442
   2625.30   8.751    470
   2620.59   8.735    454
   2618.55   8.728    480
   2559.39   8.531    473
   2557.31   8.524    460
   2555.30   8.518    494
   2553.22   8.511    453
   2335.93   7.786    895
   2334.53   7.782   1000
   2313.39   7.711    999
   2311.97   7.707    893
   2080.49   6.935    459
   2076.39   6.921    460
   2073.76   6.913    456
   2069.66   6.899    441

¹H NMR	300 MHz
C₆ H₅ N₃	0.25 M in (0.5N)HCl-aq.sol.
imidazo(1,2-a)pyrimidine

    Parameter     ppm  Hz

      D(A)         8.138
      D(B)         8.199
       J(A,B)          2.50
     
      D(C)         9.251
      D(D)         7.727
      D(E)         9.105
       J(C,D)          6.88
       J(C,E)          1.83
       J(D,E)          4.57
     
     MARCHETTI,L. ET AL. ORG.MAGN.RESON. 7, 455 (1975)
     H2O CONTAINED A SMALL AMOUNT OF T-BUTYL ALCOHOL
     AS INTERNAL STANDARD.

     Hz     ppm     Int.

   2779.71   9.266    429
   2777.88   9.260    463
   2772.82   9.243    442
   2771.01   9.237    478
   2734.69   9.116    466
   2732.89   9.110    440
   2730.12   9.100    484
   2728.31   9.094    441
   2461.04   8.203    771
   2458.55   8.195   1000
   2442.56   8.142   1000
   2440.08   8.134    771
   2323.79   7.746    449
   2319.21   7.731    450
   2316.92   7.723    446
   2312.36   7.708    426

¹H NMR	300 MHz
C₆ H₅ N₃	0.5 M in CF₃COOH
imidazo(1,2-a)pyrimidine

    Parameter     ppm  Hz

      D(A)         8.220
      D(B)         8.256
       J(A,B)          2.63
     
      D(C)         9.286
      D(D)         7.813
      D(E)         9.222
       J(C,D)          6.91
       J(C,E)          1.40
       J(D,E)          4.30
     
     MARCHETTI,L. ET AL. ORG.MAGN.RESON. 7, 455 (1975)

     Hz     ppm     Int.

   2790.00   9.300    397
   2788.61   9.295    447
   2783.10   9.277    406
   2781.72   9.272    465
   2769.43   9.231    451
   2768.05   9.227    407
   2765.14   9.217    469
   2763.74   9.212    404
   2478.27   8.261    629
   2475.66   8.252   1000
   2467.15   8.224   1000
   2464.54   8.215    629
   2349.46   7.832    413
   2345.17   7.817    413
   2342.58   7.809    408
   2338.27   7.794    393

¹H NMR	300 MHz
C₆ H₅ N₃	0.25 M in (5N)HCl-aq.sol.
imidazo(1,2-a)pyrimidine

    Parameter     ppm  Hz

      D(A)         8.116
      D(B)         8.176
       J(A,B)          2.45
     
      D(C)         9.220
      D(D)         7.714
      D(E)         9.091
       J(C,D)          6.73
       J(C,E)          1.79
       J(D,E)          4.58
     
     MARCETTI,L. ET AL. ORG.MAGN.RESON  7, 455 (1975)
     H2O CONTAINED A SMALL AMOUNT OF T-BUTYL ALCOHOL
     AS INTERNAL STANDARD.

     Hz     ppm     Int.

   2770.31   9.234    428
   2768.52   9.228    466
   2763.58   9.212    441
   2761.80   9.206    480
   2730.48   9.102    469
   2728.70   9.096    439
   2725.90   9.086    487
   2724.12   9.080    440
   2454.10   8.180    772
   2451.67   8.172   1000
   2435.95   8.120   1000
   2433.50   8.112    772
   2319.81   7.733    449
   2315.23   7.717    451
   2313.10   7.710    448
   2308.52   7.695    426

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