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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1399887Generated: November 2, 2026

Ammonium Chloride → 3-Bromobenzene-1,2-diamine

https://huagongshe.com/reaction/1399887

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant3-Bromo-2-nitroanilineHCID 21852072—
CatalystIronHCID 23925—
SolventEthanolHCID 702—
SolventWaterHCID 962—
Product3-Bromobenzene-1,2-diamineHCID 1248983998.8%

Reaction Steps

A mixture of 3-bromo-2-nitroaniline (2 g, 9.2 mmol), Fe powder (1.54 g, 27.6 mmol) and NH4Cl (4.8 g, 52 mmol) in EtOH and H2O was stirred under reflux for 1 h. The mixture was cooled to room temperature and filtered. The filtrate was diluted water extracted with ethyl acetate and the combined organic layers were dried and concentrated in vacuum to give the crude desired product (1.7 g, Yield 85%). This crude was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08906900B2
Source datasetuspto-grants-2014_12
ORD IDord-83fe1d2195394557acef6467367e23f8
Source noteuspto-grants-2014_12