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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 588767Generated: October 25, 2026

4,5-Dichloro-2-nitrophenol → 2-Amino-4,5-dichlorophenol

https://huagongshe.com/reaction/588767

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,5-Dichloro-2-nitrophenolHCID 38248—
CatalystIronHCID 23925—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
Product2-Amino-4,5-dichlorophenolHCID 301541578%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a stirred solution of 4,5-dichloro-2-nitrophenol (15 g, 72 mmol) in acetic acid (150 mL) and water (450 mL), iron powder (16 g, 285 mmol) was added in portions. The resulting mixture was stirred at 50° C. for 2 h. The mixture was allowed to cool to room temperature, filtered, and the cake was rinsed with ethyl acetate. The filtrate was extracted with ethyl acetate. The organic layer was washed with water, NaHCO3 (aq.) and brine, dried over Na2SO4 and concentrated in vacuo to afford the desired product (10 g, 78%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09227978B2
Source datasetuspto-grants-2016_01
ORD IDord-bff78745c1124b84b578a242800471d8
Source noteuspto-grants-2016_01