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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1403522Generated: October 30, 2026

Methylamine → 4-Bromo-N-methyl-2-nitroaniline

https://huagongshe.com/reaction/1403522

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Bromo-1-fluoro-2-nitrobenzeneHCID 2736328—
SolventDichloromethaneHCID 6344—
Product4-Bromo-N-methyl-2-nitroanilineHCID 25804297%

Reaction Steps

To a solution of 4-bromo-1-fluoro-2-nitrobenzene (6 g, 27.27 mmol) in dichloromethane (100 ml) was added potassium carbonate (7.5 g, 54.27 mmol). This was followed by the addition of CH3NH2 (20 ml, 33% aqueous), which was added dropwise with stirring at room temperature. The resulting solution was stirred for 2 h at room temperature, extracted with dichloromethane (2×200 ml), and the organic layers combined and concentrated under vacuum to afford 4-bromo-N-methyl-2-nitroaniline as a red solid (6.1 g, 97%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08912188B2
Source datasetuspto-grants-2014_12
ORD IDord-43116106268e4ea0999c6d9ea153ebec
Source noteuspto-grants-2014_12