Piperazine → 1-(5-Trifluoromethyl-pyridin-2-yl)-piperazine

HRID 1966340Notes

Reaction equation

HRID 1966340 reaction equation
[NH:1]1[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.Cl[C:8]1[CH:13]=[CH:12][C:11]([C:14]([F:17])([F:16])[F:15])=[CH:10][N:9]=1>C1COCC1>[F:15][C:14]([F:17])([F:16])[C:11]1[CH:12]=[CH:13][C:8]([N:1]2[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]2)=[N:9][CH:10]=1

Participants

4

Reactant 2

HCID 4837PiperazineHCID 923422-Chloro-5-(trifluoromethyl)pyridine

Product 1

HCID 6676181-(5-Trifluoromethyl-pyridin-2-yl)-piperazine

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

Piperazine (1.2 g, 13.77 mM) was heated with 2-chloro-5-(trifluoromethyl)pyridine (0.5 g, 2.75 mmol) in THF (2 mL) for 2 hours. Subsequently the reaction mixture was poured onto crushed ice and extracted with ethyl acetate. The organic layer was washed with sodium bicarbonate and evaporated to furnish the required product.

Workup

  1. additionSubsequently the reaction mixture was poured
  2. customonto crushed ice
  3. extractionextracted with ethyl acetate
  4. washThe organic layer was washed with sodium bicarbonate
  5. customevaporated

Sources & evidence

ORD record
ord-eae413dac4fe4039b18c6986d918988a
Source dataset
uspto-grants-2013_04
Patent number
US08420653B2

Reaction notes

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