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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1932437Generated: October 31, 2026

4-Aminophenol → HCID 54909083, compound

https://huagongshe.com/reaction/1932437

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminophenolHCID 403—
ReactantSodium HydroxideHCID 14798—
Reactant2-Chloro-5-nitropyridineHCID 78308—
SolventMethanolHCID 887—
ProductHCID 54909083HCID 54909083—

Reaction Conditions

Temperature70 °C

Reaction Steps

To a solution of sodium hydroxide (730 mg, 18.25 mmol) in methanol was added 4-aminophenol (2.00 g, 18.32 mmol). After the resulting mixture was made to dissolve, methanol was evaporated under reduced pressure. To the residue was added DMF (20 mL), and then 2-chloro-5-nitropyridine (2.91 g, 18.35 mmol). The reaction solution was stirred for 1.5 hours at 70° C., and then concentrated under reduced pressure. Water was added to the residue, and the resulting solution was extracted with ethyl acetate. The ethyl acetate layer was washed with brine. The ethyl acetate layer was dried over anhydrous magnesium sulfate, after which solvent was evaporated, and the residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=1:1), to thereby yield 3.37 g of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188277B2
Source datasetuspto-grants-2012_05
ORD IDord-a79fd0cf38a64bdea3347c503fc49f3a
Source noteuspto-grants-2012_05