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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 50822Generated: October 25, 2026

Trifluoroacetic acid → 5-Amino-2-fluoroisonicotinic acid

https://huagongshe.com/reaction/50822

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant5-((tert-Butoxycarbonyl)amino)-2-fluoroisonicotinic acidHCID 10611065—
Product5-Amino-2-fluoroisonicotinic acidHCID 276251175.6%

Reaction Steps

Reaction of 5-[N-(tert-butoxycarbonyl)amino]-2-fluoropyridine-4-carboxylic acid (1.0 g, 3.9 mmol) with TFA as described above gives 5-amino-2-fluoropyridine-4-carboxylic acid(0.46 g, 74). 1H NMR (DMSO) δ 7.85 (1H, d, J=1.5 Hz), 7.23 (1H, d, J 2.5 Hz).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06713484B2
Source datasetuspto-grants-2004_03
ORD IDord-5fadefd3dcde4b31a3bea03fd87765bc
Source noteuspto-grants-2004_03