Dimethylformamide → 1-(2-Nitrophenyl)piperidine

HRID 2410303Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2410303
[NH:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.CN(C)C=O.F[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[N+:19]([O-:21])=[O:20]>O>[N+:19]([C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=1[N:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1)([O-:21])=[O:20]

Komponenten

5

Edukt 3

HCID 6228DimethylformamideHCID 8082PiperidineHCID 738951-Fluoro-2-nitrobenzene

Produkt 1

HCID 2254571-(2-Nitrophenyl)piperidineAusbeute 98,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

Piperidine (338 μl, 3.41 mmol, commercially available product) was added at room temperature to an N,N-dimethylformamide (DMF; 0.5 ml) solution of 2-fluoro-1-nitrobenzene (219 mg, 1.55 mmol, commercially available product). The resulting mixture was stirred for two hours. Water was added to the mixture, and the resulting mixture was extracted three times with ethyl acetate. The obtained organic layer was washed with a saturated sodium chloride solution, dried over anhydrous sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (20 g, hexane/ethyl acetate=20/1). Thus, 1-(2-nitrophenyl)piperidine (315 mg, 98.8%) was yielded as a colorless oily material.

Aufarbeitung

  1. extractionthe resulting mixture was extracted three times with ethyl acetate
  2. washThe obtained organic layer was washed with a saturated sodium chloride solution
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (20 g, hexane/ethyl acetate=20/1)

Quellen und Nachweise

ORD-Eintrag
ord-9e3e39c60f834caaad0719d862c64e12
Quelldatensatz
uspto-grants-2014_08
Patentnummer
US08816089B2

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