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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1771650Generated: November 2, 2026

Sulfuric Acid → 1-Bromo-4-fluoro-2-methyl-3-nitrobenzene

https://huagongshe.com/reaction/1771650

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantN-bromobutanimideHCID 67184—
Reactant1-Fluoro-3-methyl-2-nitrobenzeneHCID 19773803—
SolventTrifluoroacetic acidHCID 6422—
Product1-Bromo-4-fluoro-2-methyl-3-nitrobenzeneHCID 5854040067%

Reaction Steps

To a solution of 1-fluoro-3-methyl-2-nitro-benzene (5 g, 32.24 mmol, 1.0 eq) in TFA (25 mL) and conc.H2SO4 (10 mL) at 0° C. was added NBS (6.31 g, 35.46 mmol, 1.1 eq) in portions. After addition, the mixture was stirred at room temperature for 2 h. The resulting mixture was poured onto ice and the precipitate that formed collected by filtration, washed with water and dried in vacuo to give the title compound as a yellow solid (5 g, 67%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09249085B2
Source datasetuspto-grants-2016_02
ORD IDord-e59d487442eb4b0a99fbf1d3784c9198
Source noteuspto-grants-2016_02