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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 14861Generated: November 1, 2026

2-(3-Fluoro-4-methoxyphenyl)ethanamine → 4-(2-Aminoethyl)-2-fluorophenol

https://huagongshe.com/reaction/14861

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(3-Fluoro-4-methoxyphenyl)ethanamineHCID 426300—
SolventHydrogen BromideHCID 260—
Product4-(2-Aminoethyl)-2-fluorophenolHCID 193292—

Reaction Steps

Intermediate 82 was dissolved in 200 mL of 48% aqueous HBr and the mixture heated to reflux for 2 hours. The Solvent was removed by rotary evaporation. The residue was taken up in 100 mL of ethanol and the solvent again removed. This was repeated twice more to remove residual water. LC-MS showed the product was >90% pure had the expected M+H+ of 156.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07732444B2
Source datasetuspto-grants-2010_06
ORD IDord-6c9988accec348ea9bff4032ff9d99e2
Source noteuspto-grants-2010_06