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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2197968Generated: November 1, 2026

Sulfuric Acid → Methyl 4-bromo-3-nitrobenzoate

https://huagongshe.com/reaction/2197968

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant4-Bromo-3-nitrobenzoic acidHCID 232986—
ReactantWater ethylacetateHCID 22728543—
CatalystSulfuric AcidHCID 1118—
SolventMethanolHCID 887—
ProductMethyl 4-bromo-3-nitrobenzoateHCID 2736829—

Reaction Conditions

Temperature90 °C

Reaction Steps

Commercially available 4-bromo-3-nitro-benzoic acid (1.17 g, 4.76 mmol) was dissolved in methanol (5 mL) containing five drops of concentrated sulfuric acid. The mixture was heated in air at 90° C. for six hours and more MeOH (7 mL) followed by concentrated sulfuric acid (0.6 mL) was added. Heating was continued another 24 hours. Extractive work up (ethyl acetate-water) followed by drying over MgSO4, filtered and concentrated under vacuum giving the title compound in quantitative yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08338605B2
Source datasetuspto-grants-2012_12
ORD IDord-99bbbe5f8eb44a329162cd8f5efe9ee8
Source noteuspto-grants-2012_12