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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1384536Generated: October 31, 2026

Sodium Hydroxide → 5-Amino-4-fluoro-2-methylphenol

https://huagongshe.com/reaction/1384536

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant4-Fluoro-2-methyl-5-nitrophenolHCID 10821059—
CatalystIronHCID 23925—
CatalystFerrous SulfateHCID 24393—
SolventWaterHCID 962—
Product5-Amino-4-fluoro-2-methylphenolHCID 1015409847%

Reaction Steps

A mixture of 4-fluoro-2-methyl-5-nitrophenol (2.1 g, 13 mmol), iron powder (1 g, 18 mmol) and iron(II)sulphate (1.5 g, 10 mmol) in water (40 ml) was refluxed for 4 hours. The reaction mixture was allowed to cool, neutralised with 2M aqueous sodium hydroxide and extracted with ethyl acetate (100 ml). The ethyl acetate extract was dried (MgSO4) and the solvent removed by evaporation to give 2-fluoro-5-hydroxy-4-methylaniline (0.8 g, 47%) as a solid. 1H NMR Spectrum: (DMSOd6) 1.94(s, 3H); 4.67(s, 2H); 6.22(d, 1H); 6.65(d, 1H); 8.68(s, 1H) MS-ESI: 142 []+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06258951B1
Source datasetuspto-grants-2001_07
ORD IDord-d5a43c6cd9d54abc8bf21bb8b102a382
Source noteuspto-grants-2001_07