HuagongsheHuagongshe Chemistry Print Report · For research reference only
Toluene → HCID 22032913, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Toluene | HCID 1140 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 4-tert-Butylphenylboronic acid | HCID 2734320 | — |
| Reactant | 6-Bromo-1-methyl-1H-indole | HCID 15546854 | — |
| Catalyst | Tetrakis(triphenylphosphine)palladium | HCID 11979704 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 22032913 | HCID 22032913 | 56.3% |
Reaction Steps
Following the procedure described in Step 2 of Example 5, 6-bromo-1-methyl-1H-indole (1.12 g, 5.33 mmol) was coupled to 4-(tert-butyl)phenylboronic acid (1.07 g, 6.00 mmol), using tetrakis(triphenylphosphine) palladium (0.655 g, 0.567 mmol), and potassium carbonate (2.94 g, 21.3 mmol) in water (10.6 mL), ethanol (2.2 mL), and toluene (23 mL). Purification by flash chromatography (Biotage apparatus) using 0-1% ethyl acetate in hexane as an eluant then drying at 60° C. yielded 6-[4-(tert-butyl)phenyl]-1-methyl-1H-indole as a yellow solid (0.790 g, 56%), mp: 92-94° C. 1HNMR (200 MHz, DMSO-d6): δ 7.55-7.7 (m, 5H), 7.45 (d, 2H, J=7.5 Hz), 7.3 (d, 2H, J=8.5 Hz), 6.6 (d, 1H, J=3.5 Hz), 3.9 (s, 3H), and 1.3 ppm (s, 9H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07368471B2 |
| Source dataset | uspto-grants-2008_05 |
| ORD ID | ord-7bb60d28db574f30a9b7d89dfe201d7f |
| Source note | uspto-grants-2008_05 |