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Synthesis of various xanthenes under CS-D-IL catalysis .
| ||
|---|---|---|
| Entry | Substrate | Yield (%)a |
| 1 | Benzaldehyde | 95 |
| 2 | 4-NO2-benzaldehyde | 95 |
| 3 | 2-NO2-benzaldehyde | 90 |
| 4 | 4-Me-benzaldehyde | 93 |
| 5 | 4-MeO-benzaldehyde | 92 |
| 6 | 2-MeO-benzaldehyde | 90 |
| 7 | 4-Cl-benzaldehyde | 95 |
| 8 | Furfural | 80 |
aIsolated yield.
