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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 923797Generated: November 1, 2026

Nitric Acid → HCID 24903131, compound

https://huagongshe.com/reaction/923797

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantSulfuric AcidHCID 1118—
ReactantSodium BicarbonateHCID 516892—
ReactantN-Ethyl-5-(trifluoromethyl)pyridin-2-amineHCID 13144278—
ProductHCID 24903131HCID 24903131—

Reaction Conditions

Temperature95 °C

Reaction Steps

A mixture of N-ethyl-(5-trifluoromethylpyridin-2-yl)-amine (1.0 g) and sulfuric acid (7 ml) was stirred with heating at 95° C., and then a mixture of fuming nitric acid (0.45 ml) and sulfuric acid (3 ml) were added thereto, and stirred with heating for 1 hour. The reaction mixture cooling to room temperature was poured into ice, and then saturated aqueous sodium hydrogen carbonate solution was poured, and extracted with ethyl acetate. The organic layer was dried over sodium sulfate, and concentrated under reduced pressure. The resulting residue was subjected to silica gel chromatography to give 600 mg of N-ethyl-(3-nitro-5-trifluoromethylpyridin-2-yl)-amine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09278983B2
Source datasetuspto-grants-2016_03
ORD IDord-68144fa67476488089e36c2288d4a457
Source noteuspto-grants-2016_03