HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → Ethyl alpha-methyl-4-(2-methylpropyl)benzeneacetate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Ibuprofen, (+-)- | HCID 3672 | — |
| Product | Ethyl alpha-methyl-4-(2-methylpropyl)benzeneacetate | HCID 170486 | — |
Reaction Steps
Under a nitrogen atmosphere, 2-(4-isobutylphenyl)-propionic acid (15.0 g) was dissolved in ethanol (200 ml), and conc. sulfuric acid (1 ml) was added, after which the solution was stirred with heating under reflux for 15 hours. The reaction mixture was cooled to room temperature, concentrated under reduced pressure, diluted with ethyl acetate, and thereafter neutralized with a saturated aqueous sodium bicarbonate solution. After extraction with ethyl acetate, the organic layer was dried over sodium sulfate and then concentrated under reduced pressure to obtain ethyl 2-(4-isobutyl-phenyl)-propionate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06100260 |
| Source dataset | uspto-grants-2000_08 |
| ORD ID | ord-452ebfc58bf84a5c953797ffbddbe9df |
| Source note | uspto-grants-2000_08 |