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

HRID 2273329Notes

Reaction equation

HRID 2273329 reaction equation
Cl[C:2]1[C:7]([N+:8]([O-:10])=[O:9])=[CH:6][C:5]([C:11]([F:14])([F:13])[F:12])=[CH:4][N:3]=1.[F:15][C:16]([F:20])([F:19])[CH2:17][NH2:18].C(N(CC)C(C)C)(C)C.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>CN1CCCC1=O>[N+:8]([C:7]1[C:2]([NH:18][CH2:17][C:16]([F:20])([F:19])[F:15])=[N:3][CH:4]=[C:5]([C:11]([F:14])([F:13])[F:12])[CH:6]=1)([O-:10])=[O:9]

Participants

6

Reactant 4

HCID 311Citric AcidHCID 9773Ethanamine, 2,2,2-trifluoro-HCID 81531DiisopropylethylamineHCID 47369502-Chloro-3-nitro-5-(trifluoromethyl)pyridine

Product 1

HCID 86725178(3-Nitro-5-trifluoromethylpyridin-2-yl)-(2,2,2-trifluoroethyl)amineYield 79.4%

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Procedure

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).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-0793f9f28bf14effa9ab33ab7ff2a4bb
Source dataset
uspto-grants-2015_09
Patent number
US09120823B2

Reaction notes

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