HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 4-Bromo-2-(hydroxymethyl)-6-methoxyphenol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | 5-Bromo-2-hydroxy-3-methoxybenzaldehyde | HCID 262238 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 4-Bromo-2-(hydroxymethyl)-6-methoxyphenol | HCID 894092 | 99.1% |
Reaction Steps
To a solution of 50 g of 5-bromo-2-hydroxy-3-methoxybenzaldehyde in 200 ml of an ethanol:THF=1:1 mixed solvent there was added 16.4 g of sodium borohydride while cooling on ice. After stirring at room temperature for 2 hours, 1N hydrochloric acid was added to the reaction mixture while cooling on ice. The organic layer was washed with ethyl acetate and dried over anhydrous magnesium sulfate. The desiccating agent was filtered off, and the filtrate was concentrated under reduced pressure to give the title compound (50 g) as a crude product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07816522B2 |
| Source dataset | uspto-grants-2010_10 |
| ORD ID | ord-f70b09cfff0e422789fe0e0e9bd0e158 |
| Source note | uspto-grants-2010_10 |