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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1875461Generated: October 30, 2026

Aniline → HCID 10822558, compound

https://huagongshe.com/reaction/1875461

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnilineHCID 6115—
ReactantEthylene OxideHCID 6354—
ReactantSodium HydroxideHCID 14798—
Reactant4-Amino-3-fluorophenol hydrochlorideHCID 44886912—
SolventAcetic AcidHCID 176—
SolventMethanolHCID 887—
ProductHCID 10822558HCID 10822558—

Reaction Steps

A solution of 2-fluoro-4-hydroxyaniline hydrochloride (3 g) in MeOH (50 mL) was treated with aqueous NaOH (0.74 g in 10 mL deionized water) and the resulting clear solution was concentrated to dryness to provide a residue of crude aniline free base. A 0° C. solution of the crude aniline residue in 1:1 AcOH/deionized water (32 mL) in a pressure tube was treated with liquid ethylene oxide condensed at −78° C. (7.8 g), the tube was sealed, and the reaction mixture allowed to warm up to RT. The reaction mixture was stirred at RT 48 h then cooled, evaporated to dryness and purified by silica gel chromatography (0-7% MeOH/DCM) to provide N,N-bis-(2-hydroxyethyl)-2-fluoro-4-hydroxyaniline (2 g) as a grey powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08309554B2
Source datasetuspto-grants-2012_11
ORD IDord-bd2d86c2ea0b4deaaf6b6ecc950dbbdc
Source noteuspto-grants-2012_11