Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 69551882 | HCID 69551882 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 22048444 | HCID 22048444 | 73% |
Reaction Steps
To 3-hydroxyphenyl acetic acid methyl ester (27.3 g, 165 mmol) in acetone (200 mL) was added 2-iodobutane (55 mL, 478 mmol) and potassium carbonate (83 g, 601 mmol). The mixture was heated at 65° C. for 48 hrs and filtered through a Celite® pad. The filtrate was concentrated in vacuo and the residue was diluted with dichloromethane and water. The aqueous phase was extracted with dichloromethane (3×100 mL). The combined extracts were washed with saturated sodium chloride (50 mL), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo to afford (3-sec-butoxy-phenyl)-acetic acid methyl ester. To a solution of (3-sec-butoxy-phenyl)-acetic acid methyl ester in methanol (200 mL) was added 10N sodium hydroxide solution (50 mL). The reaction mixture was stirred at 60° C. for 4 hrs. The solvent was evaporated and the mixture was acidified to pH=3 by addition of 6N hydrogen chloride solution. The aqueous phase was extracted with dichloromethane (3×100 m]L). The combined extracts were washed with saturated aqueous sodium chloride solution (80 mL), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo to afford (3-sec-butoxy-phenyl) acetic acid (25 g, 73% yield) as a light brown oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07067529B2 |
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| Source dataset | uspto-grants-2006_06 |
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| ORD ID | ord-8dddb49fe6b846e3afee08ee9968cab9 |
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| Source note | uspto-grants-2006_06 |
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