Table 4. Relative Amount of 1H-Imidazole and Its Most Abundant Derivatives in the Crude Products Obtained from Ammoxidation of d-Glucose at 70 °C and 100 °C (0.2 MPa O2, 3 h)a.
relative
percentage (%)a |
|||
---|---|---|---|
Rt (min) | compound | 70 °C | 100 °C |
12.32 | 1H-imidazole | 1.58 | 4.51 |
14.21 | 4-methyl-1H-imidazole | 0.00 | 43.07 |
20.47 | 4-(hydroxymethyl)-1H-imidazole | 67.42 | 46.45 |
28.38 | 4-(dihydroxyethyl)-1H-imidazole | 1.58 | 5.64 |
34.93 | 4-(2,3,4-trihydroxybutyl)-1H-imidazole | 6.09 | 44.87 |
35.41 | 4-(arabino-tetrahydroxybutyl)-1H-imidazole | 834.99 | 74.41 |
35.80 | 2-acetyl-4-(tetrahydroxybutyl)-1H-imidazole | 0.45 | 7.22 |
Values were calculated as ratio of the peak areas of the analytes relative to the internal standard phenylglucoside.