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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2202837Generated: November 1, 2026

4-Bromo-2-methyl-6-nitroaniline → 5-Bromo-3-methylbenzene-1,2-diamine

https://huagongshe.com/reaction/2202837

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Bromo-2-methyl-6-nitroanilineHCID 522679—
ReactantCalcium ChlorideHCID 5284359—
CatalystIronHCID 23925—
SolventEthanolHCID 702—
SolventWaterHCID 962—
Product5-Bromo-3-methylbenzene-1,2-diamineHCID 151639791.9%

Reaction Steps

To a stirred solution of compound 4-bromo-2-methyl-6-nitroaniline (5.0 g) in EtOH (85 ml) and water (43 ml) were added iron powder (6.0 g) and CaCl2 (4.8 g) at room temperature and the resulting reaction mixture was then heated at reflux for 4 h. The mixture was then cooled to room temperature, filtered through Celite, and washed with EtOH. The filtrate was concentrated and the resulting residue was diluted with DCM. The DCM layer was successively washed with water and brine, dried over Na2SO4 and concentrated in vacuo to give the title compound (4.0 g) as a dark brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09365540B2
Source datasetuspto-grants-2016_06
ORD IDord-759cdde3c0614094989b0f36d6833c41
Source noteuspto-grants-2016_06