HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Ethyl Acetate → 5-(Trifluoromethoxy)-1H-indole
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Ethyl Acetate | HCID 8857 | — |
| Edukt | Sodium Sulfate | HCID 24436 | — |
| Edukt | 5-(trifluoromethoxy)-2,3-dihydro-1H-indole-2,3-dione | HCID 2732752 | — |
| Edukt | Aluminium lithium hydride | HCID 21226445 | — |
| Lösungsmittel | Tetrahydrofuran | HCID 8028 | — |
| Produkt | 5-(Trifluoromethoxy)-1H-indole | HCID 17989050 | 23,3% |
Reaktionsschritte
Lithium aluminum hydride (10.4 mL, 1M in THF, 10.4 mmol) was added to a solution of 5-trifluoromethoxyisatin (0.8 g, 3.45 mmol) in THF at room temperature and the mixture was refluxed overnight. The reaction mixture was cooled, and Na2SO4 10H2O was added very carefully portionwise, followed by ethyl acetate. The reaction mixture was then filtered, and the filtrate was evaporated. The residual oil was purifed by column chromatography with ethyl acetate in hexanes (2:98) to yield 5-trifluoromethoxy-1H-indole (0.162 g, 23%).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06133287 |
| Quelldatensatz | uspto-grants-2000_10 |
| ORD ID | ord-db4b385c5414493e9da7264059cc4606 |
| Quellennotiz | uspto-grants-2000_10 |