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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2036587Generated: November 1, 2026

Water → HCID 58459146, compound

https://huagongshe.com/reaction/2036587

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDimethylformamideHCID 6228—
Reactant2,4-DifluoronitrobenzeneHCID 67967—
Reactant5-Fluoro-3-pyridinamineHCID 574450—
ReactantPotassium tert-butoxideHCID 23665647—
ProductHCID 58459146HCID 58459146—

Reaction Steps

To a solution of 2,4-difluoro-1-nitrobenzene (1.723 mL, 15.71 mmol) and 3-amino-5-fluoropyridine (1.468 g, 13.10 mmol) in DMF (21.83 mL) was added potassium tert-butoxide (2.94 g, 26.2 mmol). The solution was stirred under argon at rt overnight. The solution was poured into water and extracted with EtOAc, organic extracts were dried over magnesium sulfate and concentrated to a brown solid. The brown solid was purified by column chromatography on a silica gel column using 5 to 30% gradient of EtOAc in hexane as eluent to give 5-fluoro-N-(4-fluoro-2-nitrophenyl)pyridin-3-amine as an orange solid: LC-MS (ESI) m/z 252.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575183B2
Source datasetuspto-grants-2013_11
ORD IDord-c8602db58471403382560bc4b53a782a
Source noteuspto-grants-2013_11