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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 240341Generated: October 29, 2026

Hydrochloric Acid → HCID 4197917, compound

https://huagongshe.com/reaction/240341

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantP-AnisidineHCID 7732—
Reactant2-Chloro-3-nitropyridineHCID 79613—
SolventGlycol monoethyl etherHCID 8076—
ProductHCID 4197917HCID 419791785%

Reaction Steps

5.0 g (32 mmol) of 2-chloro-3-nitropyridine was dissolved in 2-ethoxyethanol (150 mL), and water (150 mL) was added thereto. To the mixed solution, 3.9 g (32 mmol) of 4-methoxyaniline and 6 N hydrochloric acid (1 mL) were added, and the mixture was heated to reflux for 12 hours while stirring. After confirming the completion of the reaction, the reaction solution was cooled to room temperature, and the solvent was distilled off under reduced pressure. The residue was extracted with ethyl acetate, and washed with saturated brine, and then the obtained organic layer was dried over anhydrous magnesium sulfate. The inorganic matter was separated by filtration, and then the solvent was distilled off under reduced pressure, to obtain 6.6 g (yield: 85%) of N-(4-methoxyphenyl)-3-nitropyridin-2-amine as orange-colored crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08648075B2
Source datasetuspto-grants-2014_02
ORD IDord-59d19ddbe8804d43ae9c7749f1408eeb
Source noteuspto-grants-2014_02