Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hexane | HCID 8058 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | HCID 20559484 | HCID 20559484 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 20559487 | HCID 20559487 | 60.8% |
Reaction Steps
Potassium hydroxide (5.5 g.) was added to a solution of ethyl 2-{2-[4-(4-chlorophenyl)phenyl]-ethoxy}propionate (7.0 g.) in methanol (50 ml.), and the resultant solution was heated under reflux for 2 hours. The mixture was cooled and solvent removed by evaporation, the residue was mixed with water (50 ml.) and the solution obtained was extracted with ether (2×50 ml.) to remove non-acidic material. The aqueous phase was acidified with 4 N-hydrochloric acid to pH 2-3 and extracted with ethyl acetate (3×50 ml.). The extracts were washed with water, dried (MgSO4) and evaporated. The oil obtained, solidified on trituration with hexane to give 2-{2-[4-(4-chlorophenyl)phenyl]-ethoxy}propionic acid (3.9 g., 57%), m.p. 90°-92° C. (after recrystallisation from a mixture of hexane and toluene), molecular ion: M+ 304.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04304788 |
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| Source dataset | uspto-grants-1981_12 |
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| ORD ID | ord-4c1881c439e4413da1c5cddb2caded7f |
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| Source note | uspto-grants-1981_12 |
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