Water → 1-[2-(4-Nitrophenyl)ethyl]piperidine

HRID 1277023

Reaktionsgleichung

Reaktionsgleichung von HRID 1277023
Br[CH2:2][CH2:3][C:4]1[CH:9]=[CH:8][C:7]([N+:10]([O-:12])=[O:11])=[CH:6][CH:5]=1.[NH:13]1[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14]1.C(=O)([O-])[O-].[K+].[K+].O>CN(C=O)C>[N+:10]([C:7]1[CH:8]=[CH:9][C:4]([CH2:3][CH2:2][N:13]2[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14]2)=[CH:5][CH:6]=1)([O-:12])=[O:11]

Komponenten

6

Edukt 4

HCID 962WaterHCID 8082PiperidineHCID 11430Potassium CarbonateHCID 792664-Nitrophenethyl bromide

Produkt 1

HCID 2205731-[2-(4-Nitrophenyl)ethyl]piperidine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

In DMF (100 ml) was dissolved 4-(2-bromoethyl)nitrobenzene (25.0 g), and to the solution were added piperidine (12.9 ml) and potassium carbonate (18.0 g). The mixture was stirred at 70° C. for 15 hours, and to the mixture was added water (900 ml), and then the mixture was extracted with ethyl acetate. The organic layer was washed with saturated sodium chloride solution, dried with anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was separated and purified with column chromatography (ethyl acetate) to give 1-[2-(4-nitro-phenyl)ethyl]piperidine (24.8 g) as orange oil.

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated sodium chloride solution
  3. dry with materialdried with anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was separated
  6. custompurified with column chromatography (ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-02b77638ffeb433bbb1093c1d1e21caf
Quelldatensatz
uspto-grants-2000_12
Patentnummer
US06166006

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