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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 530919Generated: October 31, 2026

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

https://huagongshe.com/reaction/530919

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 numberUS09353110B2
Source datasetuspto-grants-2016_05
ORD IDord-905d55b3be8a44dda1838f5fe54ddaa8
Source noteuspto-grants-2016_05