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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2273329Generated: November 1, 2026

Citric Acid → (3-Nitro-5-trifluoromethylpyridin-2-yl)-(2,2,2-trifluoroethyl)amine

https://huagongshe.com/reaction/2273329

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantEthanamine, 2,2,2-trifluoro-HCID 9773—
ReactantDiisopropylethylamineHCID 81531—
Reactant2-Chloro-3-nitro-5-(trifluoromethyl)pyridineHCID 4736950—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product(3-Nitro-5-trifluoromethylpyridin-2-yl)-(2,2,2-trifluoroethyl)amineHCID 8672517879.4%

Reaction Steps

A mixture of 2-chloro-3-nitro-5-trifluoromethylpyridine (2.60 g), 2,2,2-trifluoroethylamine (0.79 g), N,N-diisopropylethylamine (1.04 g) and N-methyl-2-pyrrolidone (5 ml) was stirred at room temperature for 10 hours. To the reaction mixture was poured aqueous 10% citric acid solution, and then the mixture was extracted with ethyl acetate. The organic layer was washed with water, dried over sodium sulfate, and concentrated under reduced pressure to give (3-nitro-5-trifluoromethylpyridin-2-yl)-(2,2,2-trifluoroethyl)amine (1.83 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09120823B2
Source datasetuspto-grants-2015_09
ORD IDord-0793f9f28bf14effa9ab33ab7ff2a4bb
Source noteuspto-grants-2015_09