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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2173726Generated: November 1, 2026

Hydrochloric Acid → 3-Amino-5,6-bis(trifluoromethyl)pyrazine-2-carboxylic acid

https://huagongshe.com/reaction/2173726

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
ReactantEthyl 3-amino-5,6-bis(trifluoromethyl)pyrazine-2-carboxylateHCID 86657667—
SolventEthanolHCID 702—
Product3-Amino-5,6-bis(trifluoromethyl)pyrazine-2-carboxylic acidHCID 58442311—

Reaction Steps

To a stirring solution of ethyl 3-amino-5,6-bis(trifluoromethyl)pyrazine-2-carboxylate (300 mg, 0.990 mmol) in EtOH (10 ml), 2M NaOH (0.495 ml, 0.990 mmol) was added dropwise over 1 minute. After stirring at RT for 30 minutes the reaction mixture was poured into water (30 ml) and the pH was adjusted to pH 4 by addition of 1M HCl.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09056867B2
Source datasetuspto-grants-2015_06
ORD IDord-3e85a89b27964d989b2d901f8d8a130c
Source noteuspto-grants-2015_06