Table 4. Reductive homocoupling of 2-bromo-5-(trifluoromethyl)pyridine in different solvent.
| Solvent | Conversion after 24 h | Solvent | Conversion after 24 h |
|---|---|---|---|
| Cyrene | 98 | NMP | 16 |
| DMF | 53 | 1-Butanal | 11 |
| MeCN | 59 | DME | 7 |
| GVL | 53 | H2O | 0 |
| 2-MeTHF | 23 |
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