HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → Ethyl 5-bromo-2-hydroxybenzoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | 5-Bromosalicylic acid | HCID 6972 | — |
| Reactant | 1-Hydroxybenzotriazole hydrate | HCID 2796029 | — |
| Reactant | Dimethylaminopropyl carbodiimide hydrochloride | HCID 21899179 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | Ethyl 5-bromo-2-hydroxybenzoate | HCID 4416107 | 61% |
Reaction Steps
5-Bromosalicylic acid (434 mg), 1-ethyl-3-(3-dimethylaminopropylcarbodiimide hydrochloride (420 mg), 1-hydroxybenzotriazole hydrate (337 mg), and ethanol (2 ml) were dissolved in N,N-dimethylformamide to prepare a solution which was then stirred at room temperature overnight. Water was added to the reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with water and was dried over anhydrous sodium sulfate. The solvent was removed therefrom by distillation under the reduced pressure, and the residue was purified by column chromatography using acetone-hexane to give ethyl 5-bromosalicylate (299 mg, yield 61%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07560558B2 |
| Source dataset | uspto-grants-2009_07 |
| ORD ID | ord-f9e4cfd19d79475e987e28b4402f1b61 |
| Source note | uspto-grants-2009_07 |