Table 4.
Chemical shifts of the main products present in fraction 105 + 106
| C shift (ppm) | H shift (ppm) | Multiplicity | Coupling (Hz) | |
|---|---|---|---|---|
| α-glucose | ||||
| ─C1H─O─ | 92.50 | 5.27 | d | 2.83 |
| ─C2H─ | 72.45 | 3.53 | t | 9.40 |
| ─C3H─ | 73.97 | 3.82 | t | 9.40 |
| ─C4H─ | 70.18 | 3.41 | t | 9.40 |
| ─C5H─ | 69.56 | 4.03 | d | 9.40 |
| ─C6H─ (acylated C′173.93)* | 63.20 | 4.30 | Overlap | nd |
| ─C6′H─ (acylated C′173.93)* | 63.20 | 4.40 | Overlap | nd |
| β-glucose | ||||
| ─C1H─O─ | 96.87 | 4.64 | d | 6.40 |
| ─C2H─ | 74.88 | 3.35 | t | 8.60 |
| ─C3H─ | 76.37 | 3.55 | t | 8.80 |
| ─C4H─ | 70.18 | 3.46 | Overlap | nd |
| ─C5H─ | 74.03 | 3.54 | Overlap | nd |
| ─C6H─ (acylated C′174.02)* | 63.40 | 4.32 | Overlap | nd |
| ─C6′H─ (acylated C′174.02)* | 63.40 | 4.37 | Overlap | nd |
d doublet, t triplet, nd not determinable
* Acylation site