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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1914553Generated: November 4, 2026

5-Pyridin-4-yl-thiophene-3-carboxylic acid ethyl ester → 5-Pyridin-4-yl-thiophene-3-carboxylic acid

https://huagongshe.com/reaction/1914553

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Pyridin-4-yl-thiophene-3-carboxylic acid ethyl esterHCID 58110286—
SolventSodium HydroxideHCID 14798—
Product5-Pyridin-4-yl-thiophene-3-carboxylic acidHCID 5811022852.2%

Reaction Conditions

Temperature130 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08614209B2
Source datasetuspto-grants-2013_12
ORD IDord-736fa6482ddb4aeabbc10a14999bdccf
Source noteuspto-grants-2013_12