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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 468791Generated: October 30, 2026

Ammonia → Benzenamine, 3-bromo-4-methyl-

https://huagongshe.com/reaction/468791

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantEthanolHCID 702—
ReactantWaterHCID 962—
Reactant2-Bromo-4-nitrotolueneHCID 82189—
CatalystIronHCID 23925—
SolventAcetic AcidHCID 176—
ProductBenzenamine, 3-bromo-4-methyl-HCID 8218771%

Reaction Conditions

Temperature70 °C

Reaction Steps

2-Bromo-4-nitrotoluene (10.0 g, 46.3 mmol) was added to a mixture of water (60 mL), ethanol (130 mL) and acetic acid (40 mL) under nitrogen. The mixture was heated to 70° C. and iron powder (10.3 g, 185 mmol) was added portionwise. After the mixture was heated at refluxed for 2 hours, it was cooled and aqueous ammonia (34%, 180 mL) was added slowly. The mixture is filtered through celite and the aqueous phase was extracted with ethyl acetate. It was dried over MgSO4, filtered, and solvent was removed to give the product as a brown oil (6.0 g, 71%). LCMS (ESI): M+H=185.8.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08623889B2
Source datasetuspto-grants-2014_01
ORD IDord-24365ee043f340539273055979b091de
Source noteuspto-grants-2014_01