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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1862482Generated: November 1, 2026

Dimethylformamide → 2-Fluoro-5-iodo-3-nitropyridine

https://huagongshe.com/reaction/1862482

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium FluorideHCID 522689—
Reactant2-Chloro-5-iodo-3-nitropyridineHCID 1514294—
SolventSodium chloride; waterHCID 57417360—
Product2-Fluoro-5-iodo-3-nitropyridineHCID 151429547.5%

Reaction Steps

5-iodo-3-nitro-2-chloropyridine (0.624 g, 2.19 mmol), KF (265 mg, 58.1 mmol), and DMF (3 mL) were stirred at 120 degrees Celsius for 24 h. The mixture was poured into saturated brine, extracted with ethyl acetate, dried over sodium sulfate, then concentrated. The crude residue was purified by flash chromatography using 4-1 hexane:ethyl acetate to yield 5-iodo-3-nitro-2-fluoropyridine (279 mg, 47%) as a colorless solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06538010B1
Source datasetuspto-grants-2003_03
ORD IDord-8063fbd2f3ac4951bb5fe737c56393a2
Source noteuspto-grants-2003_03