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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1501697Generated: October 25, 2026

Ethanol → Methyl 3-amino-5-chloro-2-methylbenzoate

https://huagongshe.com/reaction/1501697

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantAmmonium ChlorideHCID 25517—
ReactantMethyl 5-chloro-2-methyl-3-nitrobenzoateHCID 53399191—
CatalystIronHCID 23925—
ProductMethyl 3-amino-5-chloro-2-methylbenzoateHCID 68295455—

Reaction Conditions

Temperature90 °C

Reaction Steps

To a stirred solution of methyl 5-chloro-2-methyl-3-nitrobenzoate (1 equiv.) in ethanol (2 mL per 1 mmol), was added NH4Cl solution (5.1 equiv., dissolved in water. Volume of water equivalent to volume of ethanol) followed by Fe powder (8 equiv.). The resulting reaction mixture was stirred at 90° C. for 1 h. On completion, reaction mixture was filtered and the filtrate concentrated until dryness. The resulting solid which was dissolved in saturated sodium bicarbonate solution and the aqueous layer extracted with ethyl acetate. Combined organic layers were dried over sodium sulfate and concentrated to afford solid methyl 3-amino-5-chloro-2-methylbenzoate in quantitative yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09206157B2
Source datasetuspto-grants-2015_12
ORD IDord-83f0f1e419d14dfc83de9793491a4393
Source noteuspto-grants-2015_12