Table 4. Structure Character of the Soluble Compounds Formed from Furfuryl Alcohol.
| no | tR/min | formula | molecular mass | core structure | functional group | DBE | DBE/C | (H-2O)/C |
|---|---|---|---|---|---|---|---|---|
| 1 | 10.53 | C4H6O4 | 118.03 | chain | hydroxy, carbonyl, carboxyl | 2 | 0.5 | –0.5 |
| 2 | 12.99 | C5H8O3 | 116.05 | chain | carbonyl, carboxyl | 2 | 0.4 | 0.4 |
| 3 | 13.45 | C5H6O2 | 98.04 | furanic | hydroxy | 3 | 0.6 | 0.4 |
| 4 | 15.46 | C8H10O3 | 154.06 | carbocyclic | hydroxy, carbonyl | 4 | 0.5 | 0.5 |
| 5 | 16.03 | C10H12O4 | 196.07 | carbocyclic | hydroxy, carbonyl, carboxyl | 5 | 0.5 | 0.4 |
| 6 | 16.53 | C8H10O3 | 154.06 | carbocyclic | hydroxy, carbonyl | 4 | 0.5 | 0.5 |
| 7 | 17.20 | C10H12O4 | 196.07 | carbocyclic | hydroxy, carbonyl, carboxyl | 5 | 0.5 | 0.4 |
| 8 | 18.01 | C10H12O4 | 196.07 | carbocyclic | hydroxy, carbonyl, carboxyl | 5 | 0.5 | 0.4 |
| 9 | 18.71 | C9H14O3 | 170.09 | carbocyclic | hydroxy, carbonyl | 3 | 0.33 | 0.89 |
| 10 | 19.40 | C10H12O4 | 196.07 | carbocyclic | hydroxy, carbonyl | 5 | 0.5 | 0.4 |
| 11 | 19.98 | C10H10O3 | 178.06 | carbocyclic | hydroxy, carbonyl | 6 | 0.6 | 0.4 |
| 12 | 21.12 | C15H14O4 | 258.09 | carbocyclic | hydroxy, carbonyl | 9 | 0.6 | 0.4 |
| 13 | 21.42 | C11H12O3 | 192.08 | carbocyclic | hydroxy, carbonyl, carboxyl | 6 | 0.55 | 0.55 |
| 14 | 22.87 | C14H12O2 | 212.08 | carbocyclic | hydroxy, carbonyl | 9 | 0.64 | 0.57 |
| 15 | 26.37 | C10H10O3 | 178.06 | carbocyclic | hydroxy, carbonyl | 6 | 0.6 | 0.4 |
| 16 | 27.29 | C11H14O4 | 210.09 | carbocyclic | hydroxy, carbonyl | 5 | 0.45 | 0.55 |
| 17 | 27.86 | C14H16O3 | 232.11 | carbocyclic | hydroxy, carbonyl | 7 | 0.5 | 0.71 |