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| ||||
|---|---|---|---|---|
| Entry | Solvent | Conversiona | Yield 3 | Yield 4 |
| 1 | THF | >95% | 90% | 0% |
| 2 | THF/H2O (90/10) | 76% | 62% | 13% |
| 3 | THF/H2O (50/50) | 59% | 58% | 6% |
| 4 | THF/H2O (10/90) | 84% | 69% | 12% |
| 5 | H 2 O | 90% | 72% | 15% |
Conversion was calculated from the quantity of recovered chalcone limiting reagent.
