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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 491583Generated: October 27, 2026

Hydrochloric Acid → 5-Nitro-2-(trifluoromethyl)phenol

https://huagongshe.com/reaction/491583

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridinium chlorideHCID 10176127—
Reactant2-Methoxy-4-nitro-1-(trifluoromethyl)benzeneHCID 17755961—
SolventEthyl AcetateHCID 8857—
Product5-Nitro-2-(trifluoromethyl)phenolHCID 21959586—

Reaction Conditions

Temperature210 °C

Reaction Steps

5-Nitro-2-trifluoromethylanisole (10.7 g, 48.5 mmol) and pyridine hydrochloride (44.9 g, 388 mmol) were combined in a round-bottom flask and heated at 210° C. for 2 h. The reaction was cooled to RT and dissolved into 6 N HCl and EtOAc. The layers were separated, and the organic layer was washed 4× with 2 N HCl and once with brine, dried over Na2SO4, filtered, and concentrated in vacuo, to yield the title compound as a dark red solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07531553B2
Source datasetuspto-grants-2009_05
ORD IDord-b8c2f6b0594644188f670488e5f133e0
Source noteuspto-grants-2009_05