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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1907880Generated: November 2, 2026

Hydrochloric Acid → 4-Amino-5-nitropyridine-2-carboxylic acid

https://huagongshe.com/reaction/1907880

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantMethyl 4-amino-5-nitropyridine-2-carboxylateHCID 46835478—
SolventMethanolHCID 887—
Product4-Amino-5-nitropyridine-2-carboxylic acidHCID 13040402—

Reaction Steps

A mixture of methyl-4-amino-5-nitropicolinate (200 mg, 1.01 mmol) and NaOH (aq, 1M, 2.0 mL, 2.0 mmol) in methanol was stirred at ambient temperature for 10 min. The mixture was acidified by addition of HCl (aq, 1M, 2.1 mL, 2.1 mmol) and concentrated i. vac. and the aqueous residing mixture filtered. The solid was washed with water and dried i. vac.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598190B2
Source datasetuspto-grants-2013_12
ORD IDord-55befc6ebcd748beac40249d533ed487
Source noteuspto-grants-2013_12