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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 888949Generated: October 28, 2026

Sulfuric Acid → 1-Bromo-5-fluoro-2-methyl-3-nitrobenzene

https://huagongshe.com/reaction/888949

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantN-bromobutanimideHCID 67184—
Reactant4-Fluoro-2-nitrotolueneHCID 67965—
SolventTrifluoroacetic acidHCID 6422—
SolventEthyl AcetateHCID 8857—
Product1-Bromo-5-fluoro-2-methyl-3-nitrobenzeneHCID 277338582.2%

Reaction Steps

To a solution of 4-fluoro-2-nitrotoluene (2.0 g) in trifluroacetic acid (8 ml) was added concentrated sulfuric acid (2.5 ml) followed by N-bromosuccinimide (3.4 g). After stirring for 24 hours the reaction mixture was then diluted with ethyl acetate, washed with water, brine, dried (MgSO4) and the solvent removed in vacuo. The residue was purified by flash chromatography to give 1-bromo-5-fluoro-2-methyl-3-nitro-benzene (2.48 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08252792B2
Source datasetuspto-grants-2012_08
ORD IDord-9a41c436b8ba4027ac305f8aeef594f8
Source noteuspto-grants-2012_08