HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrogen Peroxide → 2,4-Dimethoxyphenol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrogen Peroxide | HCID 784 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 2,4-Dimethoxybenzaldehyde | HCID 69175 | — |
| Reactant | Potassium Bisulfite | HCID 23663620 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 2,4-Dimethoxyphenol | HCID 593006 | 69% |
Reaction Steps
Conc. sulfuric acid (0.4 ml) was added to a mixed solution comprising 3.3 g of 2,4-dimethoxybenzaldehyde and 30 ml of methanol, and under ice-cooling, 2.93 ml of 30% hydrogen peroxide aqueous solution was added to the mixture. After stirring at room temperature for 4 hours, a 5% aqueous potassium hydrogen sulfite solution was added to the mixture and the solvent was removed under reduced pressure. The residue was extracted with diethyl ether, the extract was washed and dried and the solvent was removed under reduced pressure. The residue was purified by silica gel column chromatography (solvent; hexane:ethyl acetate=4:1) to give 2.1 g of 2,4-dimethoxyphenol (yield: 69%, state: colorless oily product).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05849732 |
| Source dataset | uspto-grants-1998_12 |
| ORD ID | ord-47141c644cae4fd39b2ba21683089a79 |
| Source note | uspto-grants-1998_12 |