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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2078218Generated: November 2, 2026

Water → 2-Bromo-5-chloroaniline

https://huagongshe.com/reaction/2078218

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAmmonium ChlorideHCID 25517—
Reactant2-Bromo-5-chloronitrobenzeneHCID 2794904—
CatalystIronHCID 23925—
SolventMethanolHCID 887—
Product2-Bromo-5-chloroanilineHCID 1131027694.7%

Reaction Conditions

Temperature23 °C

Reaction Steps

A solution of 1-bromo-4-chloro-2-nitrobenzene (13.92 g, 58.87 mmol) in MeOH (300 mL) was treated with water (50 mL), ammonium chloride (22.99 g, 429.8 mmol), and iron powder (325 mesh, 16.44 g, 294.4 mmol). The suspension was stirred at 23° C. After 18 hours, the suspension was filtered through celite. The filter cake was washed with MeOH (500 mL). The combined filtrate/washings were concentrated, partitioned in EtOAc/water (500 mL/200 mL), and the organic layer was separated. The aqueous layer was washed with EtOAc (2×200 mL). The organic layers were combined, washed with brine (200 mL), dried (MgSO4), and concentrated in vacuo affording 11.51 g of 2-bromo-5-chlorobenzenamine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07928139B2
Source datasetuspto-grants-2011_04
ORD IDord-a7d6858a690c4b45898845d85e97b666
Source noteuspto-grants-2011_04