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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1501682Generated: November 1, 2026

Ammonium Chloride → Methyl 3-Amino-5-bromo-2-methylbenzoate

https://huagongshe.com/reaction/1501682

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantMethyl 5-bromo-2-methyl-3-nitrobenzoateHCID 24727998—
CatalystIronHCID 23925—
SolventEthanolHCID 702—
ProductMethyl 3-Amino-5-bromo-2-methylbenzoateHCID 2472918199.1%

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of methyl 5-bromo-2-methyl-3-nitrobenzoate (17 g, 62.0 mmol) in ethanol (85 mL) had NH4Cl solution (17 g in 85 mL water, 317.8 mmol) followed by Fe powder (27.8 g, 498.1 mmol) added. The resulting reaction mixture was stirred at 90° C. for 1 h. On completion, the reaction mixture was filtered and the filtrate was concentrated till dry. The resulting solid was dissolved in sat. sodium bicarbonate solution and extracted with ethyl acetate. The combined organic layers were dried over sodium sulfate and concentrated to afford solid methyl 3-amino-5-bromo-2-methylbenzoate (15 g, 99.1%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09206157B2
Source datasetuspto-grants-2015_12
ORD IDord-087df476307f45d8abe695737ff735a1
Source noteuspto-grants-2015_12