Variation of the reaction conditionsa.
| ||
|---|---|---|
| Entry | Variation of reaction conditions | Yield B1b (%) |
| 1 | None (standard) | 95 |
| 2 | [Ir(dF(CF3)ppy)2(dtbbpy)](PF6) instead of 3DPAFIPN | 52 |
| 3 | C6F5Br instead of C6F5I | N. D. |
| 4 | CH3CN instead of CH2Cl2 | 3 |
| 5 | THF instead of CH2Cl2 | 12 |
| 6 | 1,2-DCE instead of CH2Cl2 | 91 |
| 7 | K3PO4 instead of K2CO3 | 4 |
| 8 | Triethylamine instead of K2CO3 | N. D. |
| 9 | 18 h reaction time | 49 |
| 10 | No 3DPAFIPN | 4 |
| 11 | No C6F5I | N. D. |
| 12 | No K2CO3 | 32 |
| 13 | Dark condition | N. D. |
Reaction conditions: A1 (0.2 mmol), 3DPAFIPN (0.012 mmol), C6F5I (0.8 mmol), K2CO3 (0.6 mmol), CH2Cl2 (1 mL) in a 4 mL reaction vial, irradiated with a 34 W Kessil blue LED for 24 h under fan cooling.
Determined by GC using dodecane as an internal standard. THF = tetrahydrofuran. N. D. = not detected.