TABLE 2.
Effect of organic solvents on Fe3O4-PDA-TLL-catalyzed decanoylation of polydatin.
| Solvent | Log p | V0 (mM/h) | Time (h) | C (%) | OH a -regioselectivity (%) |
|---|---|---|---|---|---|
| Dioxane | −1.10 | 9.4 ± 0.3 | 14.0 | 94.7 ± 0.05 | 100 |
| DMSO | −1.00 | ― | 15.0 | 3.1 ± 0.1 | 100 |
| Acetone | −0.23 | 11.3 ± 0.5 | 14.0 | 98.0 ± 0.4 | 100 |
| THF | 0.49 | 10.8 ± 0.4 | 14.0 | 98.2 ± 0.3 | 100 |
| t-Butanol | 0.60 | 7.2 ± 0.2 | 16.0 | 90.0 ± 0.5 | 100 |
| MeTHF | 0.99 | 12.6 ± 0.6 | 14.0 | 98.7 ± 0.3 | 100 |
The reactions were carried out at 55°C and 200 rpm by adding 0.03 mmol polydatin, 0.33 mmol vinyl decanoate, 180 mg Fe3O4-PDA-TLL, into 3.0 ml anhydrous solvent.
a
Primary hydroxyl.