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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1616404Generated: October 30, 2026

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

https://huagongshe.com/reaction/1616404

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantMethyl 5-bromo-2-methyl-3-nitrobenzoateHCID 24727998—
CatalystIronHCID 23925—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductMethyl 3-Amino-5-bromo-2-methylbenzoateHCID 24729181—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a stirred solution of methyl 5-bromo-2-methyl-3-nitrobenzoate (150 g, 544 mmol) in ethanol (750 mL), ammonium chloride (150 g, 2777 mmol) dissolved in water (750 mL) and iron powder (93.3 g, 1636 mmol) were added under stirring. The resulting reaction mixture was heated at 80° C. for 7 h. The reaction mixture was filtered through Celite and the collected solids washed with water and ethyl acetate. The filtrate was extracted with ethyl acetate and the extract dried, concentrated under reduced pressure to give the desired compound methyl 3-amino-5-bromo-2-methylbenzoate which was used as is in further reactions.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08765732B2
Source datasetuspto-grants-2014_07
ORD IDord-7013af06a2784603a3d5dc4be00ce9c5
Source noteuspto-grants-2014_07