HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2068616Generated: October 31, 2026
5-Pyridin-4-yl-thiophene-3-carboxylic acid ethyl ester → 5-Pyridin-4-yl-thiophene-3-carboxylic acid
https://huagongshe.com/reaction/2068616
Participants
| Role | Name | HCID | Charge |
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| Reactant | 5-Pyridin-4-yl-thiophene-3-carboxylic acid ethyl ester | HCID 58110286 | — |
| Solvent | Sodium Hydroxide | HCID 14798 | — |
| Product | 5-Pyridin-4-yl-thiophene-3-carboxylic acid | HCID 58110228 | 52.2% |
Reaction Steps
5-Pyridin-4-yl-thiophene-3-carboxylic acid ethyl ester (1.4 mmol) was dissolved in 1 M aqueous sodium hydroxide (4 mL) and IMS (5 mL). The mixture was heated by microwave irradiation at 130° C. for 10 minutes, and then filtered. 1 N Hydrochloric acid was added and the resulting precipitate was isolated by filtration washed with water and dried to give the title compound as a white solid (0.15 g). LCMS m/z 205.96 [M+H]+ R.T.=1.51 min. (Analytical Method 5).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08299063B2 |
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| Source dataset | uspto-grants-2012_10 |
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| ORD ID | ord-ca25b7b160d44d12ba143a6e7bf18f07 |
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| Source note | uspto-grants-2012_10 |
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