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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 380438Generated: October 31, 2026

Hydrochloric Acid → 5-Bromo-2-methoxyaniline

https://huagongshe.com/reaction/380438

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Bromo-2-nitroanisoleHCID 118533—
CatalystIronHCID 23925—
SolventEthanolHCID 702—
Product5-Bromo-2-methoxyanilineHCID 358532872.2%

Reaction Steps

A stirred mixture of 4-bromo-2-nitroanisole (98.56 g) and iron powder (113.7 g) in ethanol (1.51) was heated to reflux and treated dropwise with hydrochloric acid (350 ml, 0.5N) over 1 hour. After refluxing for a further 3 hours the reaction mixture was cooled to room temperature then filtered through hyflosupercel. The filtrate was evaporated and the residue was treated with saturated sodium bicarbonate solution (21 ) then filtered. The solid was washed with water then recrystallised from cyclohexane to give the title compound (61.98 g) as a pale brown solid, m.p. 93-93° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06303600B1
Source datasetuspto-grants-2001_10
ORD IDord-a0c2b77fab6141fd9451f555a8d1450e
Source noteuspto-grants-2001_10