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Comparison of 3 solvents.
| Solvent | Conversion rate (%) | Notes |
|---|---|---|
| Tert-butanol | 60.5 | Solid at room temperature, analytical difficulties |
| Butanol | 60.9 | Easy to operate, high conversion rate |
| Hexane | - | Procyanidin has poor solubility in this solvent |
| Tert -amyl alcohol | 56.6 | Easy to operate, high conversion rate, but Procyanidin has poor solubility in this solvent |
| Isopentanol | 38.0 | Easy to operate, low conversion rate. |
