HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → HCID 19821136, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 19821145 | HCID 19821145 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | HCID 19821136 | HCID 19821136 | 75% |
Reaction Steps
To 35 ml of a 0.4N aqueous solution of sodium hydroxide were added 1.70 g (7.17 mmol) of 2-methyl-4-methoxy-5-acetylaminophenyl acetate and 10 ml of ethanol. The mixture was stirred at room temperature for 10 minutes. When crystals were completely dissolved, the stirring was ceased. Then 0.3 ml of acetic acid was added and thus crystals were precipitated. The crystals were collected by filtration, purified by column chromatography (Silica Gel 60, trade name, manufactured by Merck Co., 230-400 mesh, 200 g, eluent: ethyl acetate) and recrystallized from the solvent mixture of ethyl acetate/hexane (2:1). Thus 1.05 g (5.38 mmol) of 2-methyl-4-methoxy-5-acetylaminophenol was obtained. The yield was 75%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05015260 |
| Source dataset | uspto-grants-1991_05 |
| ORD ID | ord-5c5d4dd6c07d478db6c0547457019ce2 |
| Source note | uspto-grants-1991_05 |