Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Ethyl 5-ethylthiophene-3-carboxylate | HCID 12588559 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Sodium Hydroxide | HCID 14798 | — |
| Product | HCID 59542561 | HCID 59542561 | — |
Reaction Steps
5-Ethyl-thiophene-3-carboxylic acid ethyl ester (0.83 g, 3.8 mmol) was dissolved in a solution of aqueous sodium hydroxide (1 M, 6 mL) and ethanol (4 mL). The mixture was then heated to 140° C. for 10 minutes using microwave irradiation. The reaction mixture was acidified with 1 N hydrochloric acid and the resulting precipitate was isolated by filtration, washed with water and then dried under vacuum to give the title compound (0.53 g). 1H NMR (400 MHz, DMSO-d6): δ 7.05 (s, 1H), 2.75 (q, 2H), 1.4 (t, 3H), 1.2 (t, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08362008B2 |
|---|
| Source dataset | uspto-grants-2013_01 |
|---|
| ORD ID | ord-eb0f1c4f528a4689a4cbc1885d7ca301 |
|---|
| Source note | uspto-grants-2013_01 |
|---|