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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1473937Generated: October 30, 2026

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

https://huagongshe.com/reaction/1473937

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 numberUS09018134B2
Source datasetuspto-grants-2015_04
ORD IDord-1fa0bcb3c45b4f7bb62e7edf725ff5dd
Source noteuspto-grants-2015_04