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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1047238Generated: October 27, 2026

Sulfuric Acid → HCID 66606809, compound

https://huagongshe.com/reaction/1047238

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant4-Bromo-2-fluoro-5-methylbenzonitrileHCID 34175419—
SolventTrifluoroacetic acidHCID 6422—
ProductHCID 66606809HCID 6660680995%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 4-bromo-2-fluoro-5-methylbenzonitrile (40 g, 190 mmol) in a mixture of sulfuric acid (98%) and TFA (v/v=4:1, 480 mL) was stirred at 80° C. for 16 h. After the mixture was cooled to room temperature, the resulting mixture was poured into ice-cold water. The resulting precipitate was collected by filtration, washed with water and dried under reduced pressure to give the title compound (41 g, 95% yield) as a white solid. MS (ESI) m/z 232.0 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08569494B2
Source datasetuspto-grants-2013_10
ORD IDord-b520d6bfc6784dab9c8633fd2d2dd8d6
Source noteuspto-grants-2013_10