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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 629649Generated: October 29, 2026

Nitric Acid → HCID 178526837, compound

https://huagongshe.com/reaction/629649

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantSulfuric AcidHCID 1118—
Reactant2(1H)-Pyridinone, 3-(trifluoromethyl)-HCID 3678411—
ProductHCID 178526837HCID 178526837—

Reaction Conditions

Temperature0 °C

Reaction Steps

3-(Trifluoromethyl)pyridin-2-ol (2.3 g) was added to concentrated sulfuric acid (15 mL) at 0° C. The mixture was stirred at 0° C. for 5 minutes. To this solution was added nitric acid (fuming) (6 mL) dropwise over 5 minutes. The reaction mixture was stirred at room temperature for 2 hours, and was heated at 50° C. for 3 hours. After cooling, the reaction mixture was poured into ice (200 g), and the mixture was extracted with ethyl acetate three times. The combined organic layers were washed with brine, dried over MgSO4, filtered, and concentrated under reduced pressure to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09315488B2
Source datasetuspto-grants-2016_04
ORD IDord-3232c2c2f9ed4e13986e946da7452f46
Source noteuspto-grants-2016_04