HuagongsheHuagongshe Chemistry Print Report · For research reference only
Toluene → HCID 22032914, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Toluene | HCID 1140 | — |
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 4-(Trifluoromethyl)phenylboronic acid | HCID 2734389 | — |
| Reactant | HCID 18007603 | HCID 18007603 | — |
| Catalyst | Tetrakis(triphenylphosphine)palladium | HCID 11979704 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 22032914 | HCID 22032914 | 56.1% |
Reaction Steps
Following the procedure described in Step 2 of Example 2, 6-bromo-1-ethyl-1H-indole (0.400 g, 1.78 mmol), was coupled to 4-trifluoromethylbenzene boronic acid (0.348 g, 1.83 mmol), using tetrakis(triphenylphosphine) palladium (0.0668 g, 0.0578 mmol), and sodium carbonate (0.769 g, 7.26 mmol) in water (3.6 mL), ethanol (1.5 mL), and toluene (8 mL). Purification by flash chromatography using hexane as an eluant yielded the title compound as a yellow oil (0.289 g, 56%). 1HNMR (300 MHz, DMSO-d6): δ7.95 (d, 2H, J=7.7 Hz), 7.9 (s, 1H), 7.8 (d, 2H, J=7.7 Hz), 7.65 (d, 1H, J=7.7 Hz), 7.5 (d, 1H, J=1.5 Hz), 7.45 (d, 1H, J=7.7 Hz), 6.45 (d, 1H, J=2.3 Hz), 4.3 (q, 2H, J=6.9 Hz) and 1.4 ppm (t, 3H, J=6.9 Hz).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07368471B2 |
| Source dataset | uspto-grants-2008_05 |
| ORD ID | ord-ef613ca5384a4bb09913e834c02fbbe7 |
| Source note | uspto-grants-2008_05 |