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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 573188Generated: October 25, 2026

Nitric Acid → HCID 178526837, compound

https://huagongshe.com/reaction/573188

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 then 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 numberUS09029404B2
Source datasetuspto-grants-2015_05
ORD IDord-86570945c10448b6b884dda0ab05615e
Source noteuspto-grants-2015_05