HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → HCID 21938641, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | 5-Ethyl-1,3-dihydro-2H-indol-2-one | HCID 10154189 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 21938641 | HCID 21938641 | — |
Reaction Steps
5-Ethyloxindole (˜54 g, ˜335 mmol), ethanol (750 ml), water (150 ml) and potassium hydroxide (65 g, 1.62 mol) are combined and heated at reflux for 3 days. The mixture is allowed to cool and then filtered through a bed of Celite. The filtrate is concentrated under reduced pressure, water is added and the pH adjusted to 6.5. The precipitate is filtered off, washed with water and dried in an oven overnight to yield 5-ethyl-2-aminophenylacetic acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06727281B2 |
| Source dataset | uspto-grants-2004_04 |
| ORD ID | ord-b6771f0f4b14433a819141083d528917 |
| Source note | uspto-grants-2004_04 |