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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1400188Generated: November 2, 2026

Hydrochloric Acid → HCID 49788294, compound

https://huagongshe.com/reaction/1400188

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 49787900HCID 49787900—
SolventWater ethanolHCID 19096565—
ProductHCID 49788294HCID 49788294—

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of ester 58 (220 mg, 0.68 mmol) in 1:1 H2O/EtOH (9 mL), 4M aq NaOH (10 eq) was added and the mixture stirred at 100° C. for 1 h. After cooling to rt, the solution was acidified with 2M HCl yielding 5-(2-amino-pyrimidin-4-yl)-2-phenyl-thiophene-3-carboxylic acid as a solid which was filtered, washed with water and dried under reduced pressure (185 mg, 90%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08906934B2
Source datasetuspto-grants-2014_12
ORD IDord-00626ad7a6224a12ae06225d64f93428
Source noteuspto-grants-2014_12