Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 22934542 | HCID 22934542 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 21105754 | HCID 21105754 | 60% |
Reaction Steps
A mixture of ethyl 4-[5-(4-chlorophenyl)-2-thienyl]benzoate (1.03 g), 1 M aqueous sodium hydroxide solution (4.5 ml), tetrahydrofuran (30 ml) and ethanol (30 ml) was stirred at 60° C. for 1.5 hrs. After cooling, the reaction mixture was poured into water, and 1 M hydrochloric acid (15 ml) was added. The crystals were collected by filtration and recrystallized from ethanol to give 4-[5-(4-chlorophenyl)-2-thienyl]benzoic acid (0.566 g, yield 60%) as a pale-green crystalline powder. melting point: 285–286° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07223791B2 |
|---|
| Source dataset | uspto-grants-2007_05 |
|---|
| ORD ID | ord-741850916a0e4f70af406157a05d8164 |
|---|
| Source note | uspto-grants-2007_05 |
|---|