Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | HCID 54496833 | HCID 54496833 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 18319112 | HCID 18319112 | 78% |
Reaction Steps
A suspension of 2-[4-[2-(dodecylthio)ethoxy]phenyl]propanoic acid methyl ester (4.70 g, 11.5 mmol) in 80% ethanol (100 ml) was treated with a solution of potassium hydroxide (1.33 g, 20.1 mmol) in water (10 ml) and the mixture was stirred at 55° C. for 1 h. The solvent was then concentrated in vacuo and the residue was diluted with water (100 ml) and dichloromethane (250 ml). The solution was then adjusted to pH 2 with diluted hydrochloric acid and the aqueous phase was extracted a second time with dichloromethane. The combined organic extracts were washed with brine and dried (magnesium sulfate). Evaporation of the solvent under reduced pressure and crystallization of the residue from ethyl acetate-hexane gave 3.56 g (78%) of 3-[4-[2-(dodecylthio)ethoxy]phenyl]propanoic acid as white prisms: m.p. 68-69° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06350892B1 |
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| Source dataset | uspto-grants-2002_02 |
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| ORD ID | ord-7c47462332fe44fd8d4a37e39f22e6cd |
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| Source note | uspto-grants-2002_02 |
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