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Temperature dependence of the PhI(OAc)2-promoted N-sulfonyl imine formation in the presence (and absence) of I2.
| Entry | Oil Bath Temperature (°C) | Eq. I2 | Yield 2de (%) 1 |
|---|---|---|---|
| 1 | 20 | 0 | 0 |
| 2 | 20 | 1 | 39 |
| 3 | 30 | 0 | 0 |
| 4 | 30 | 1 | 42 |
| 5 | 40 | 0 | 5 |
| 6 | 40 | 1 | 72 |
| 7 | 50 | 0 | 40 |
| 8 | 50 | 1 | 72 |
1 Yields are based upon 1H-NMR integration with internal standard.
