Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | HCID 22949954 | HCID 22949954 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 18319055 | HCID 18319055 | 98% |
Reaction Steps
A mixture of 3-[4-[2-[2-[Bis(4-chlorophenyl]methoxy]ethylthio]ethoxy]phenyl]propionic acid methyl ester (2.76 g, 5.31 mmol) and 80% aqueous ethanol (50 ml) was treated with a solution of potassium hydroxide (0.7 g, 10.6 mmol) in water (3 ml) and the resulting mixture was heated at 60° C. for 1 h. The solvent was then concentrated in vacuo and the residue was diluted with water (30 ml) and dichloromethane (50 ml) and acidified to pH4 with 2N hydrochloric acid. The aqueous phase was extracted a second time with dichloromethane and the combined organic extracts were washed with brine and dried (magnesium sulfate). Evaporation of the solvent under reduced pressure gave 2.63 g (98%) of the title acid as a white solid.
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-caff024028374511b231aa9a80d55b07 |
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| Source note | uspto-grants-2002_02 |
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