Potassium Carbonate → HCID 59643238, Verbindung

HRID 2251539Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2251539
[CH3:1][C:2]([O:9][C:10]1[CH:15]=[CH:14][C:13]([CH2:16][CH2:17][NH:18][CH2:19][C:20]2[CH:25]=[CH:24][C:23]([C:26]([F:29])([F:28])[F:27])=[CH:22][CH:21]=2)=[CH:12][CH:11]=1)([CH3:8])[C:3]([O:5][CH2:6][CH3:7])=[O:4].Cl[C:31]1[CH:36]=[CH:35][C:34]([N+:37]([O-:39])=[O:38])=[CH:33][N:32]=1.C([O-])([O-])=O.[K+].[K+]>O1CCOCC1>[CH3:8][C:2]([O:9][C:10]1[CH:15]=[CH:14][C:13]([CH2:16][CH2:17][N:18]([C:31]2[CH:36]=[CH:35][C:34]([N+:37]([O-:39])=[O:38])=[CH:33][N:32]=2)[CH2:19][C:20]2[CH:21]=[CH:22][C:23]([C:26]([F:27])([F:28])[F:29])=[CH:24][CH:25]=2)=[CH:12][CH:11]=1)([CH3:1])[C:3]([O:5][CH2:6][CH3:7])=[O:4]

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 783082-Chloro-5-nitropyridineHCID 59643115HCID 59643115, Verbindung

Produkt 1

HCID 59643238HCID 59643238, VerbindungAusbeute 78,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

A mixture of ethyl 2-methyl-2-[4-(2-{[4-(trifluoromethyl)benzyl]amino}ethyl)phenoxy]propanoate (250 mg; 0.61 mmol), 2-chloro-5-nitro-pyridine (116 mg; 0.73 mmol) and K2CO3 (126 mg; 0.92 mmol) in 2 ml of dioxane was heated at 220C in a pressure tube under nitrogen for 16 hr. Upon cooling, the mixture was partitioned between ethyl acetate and water. The aqueous phase was washed with ethyl acetate and the combined organic phases were washed with brine, dried over sodium sulfate and concentrated. Purification by radial chromatography using ethyl acetate-hexane mixtures (2–30% gradient) afforded the title compound (254 mg; 78% yield).

Aufarbeitung

  1. temperatureUpon cooling
  2. customthe mixture was partitioned between ethyl acetate and water
  3. washThe aqueous phase was washed with ethyl acetate
  4. washthe combined organic phases were washed with brine
  5. dry with materialdried over sodium sulfate
  6. concentrationconcentrated
  7. customPurification by radial chromatography

Quellen und Nachweise

ORD-Eintrag
ord-89e07f800706492da910ada71f48b0de
Quelldatensatz
uspto-grants-2008_01
Patentnummer
US07319104B2

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