Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Ethyl 4-[5-(4-trifluoromethylphenyl)-2-thienyl]benzoate | HCID 22934543 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 21105761 | HCID 21105761 | 67% |
Reaction Steps
A mixture of ethyl 4-[5-(4-trifluoromethylphenyl)-2-thienyl]benzoate (0.941 g), 1 M aqueous sodium hydroxide solution (7.5 ml), tetrahydrofuran (25 ml) and ethanol (25 ml) as stirred at 60° C. for 1 hr. After cooling, the reaction mixture was poured into water, and 1 M hydrochloric acid (25 ml) was added. The crystals were collected by filtration and recrystallized from ethanol to give 4-[5-(4-trifluoromethylphenyl)-2-thienyl]benzoic acid (0.583 g, yield 67%) as a yellow crystalline powder. melting point: 284–285° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07223791B2 |
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| Source dataset | uspto-grants-2007_05 |
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| ORD ID | ord-12ecf956d1b04f0ba4b33c718fe9cee2 |
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| Source note | uspto-grants-2007_05 |
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