Butyl bromide → HCID 59234227, Verbindung

HRID 1400203Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1400203
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][NH:6][C:5](=[O:9])[C:4]=1[C:10]#[N:11].Br[CH2:13][CH2:14][CH2:15][CH3:16].C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[CH2:13]([N:6]1[CH:7]=[CH:8][C:3]([O:2][CH3:1])=[C:4]([C:10]#[N:11])[C:5]1=[O:9])[CH2:14][CH2:15][CH3:16]

Komponenten

5

Edukt 3

HCID 8002Butyl bromideHCID 11430Potassium CarbonateHCID 27867023-Pyridinecarbonitrile, 1,2-dihydro-4-methoxy-2-oxo-

Produkt 1

HCID 59234227HCID 59234227, VerbindungAusbeute 99,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
110 °C

Versuchsvorschrift

To a solution of 4-methoxy-2-oxo-1,2-dihydro-pyridine-3-carbonitrile (20 g, 133 mmol) in acetonitrile (800 ml) were added 1-bromobutane (15.8 ml, 146 mmol) and potassium carbonate (36.7 g, 266 mmol) and the mixture was heated at 110° C. for 24 hours. The mixture was cooled to room temperature and the solid was filtered off The filtrate was evaporated till dryness and the resulting crude residue was then triturated with diethylether to yield pure intermediate 4 (27.39 g, >99%) as a white solid.

Aufarbeitung

  1. temperatureThe mixture was cooled to room temperature
  2. filtrationthe solid was filtered off The filtrate
  3. customwas evaporated till dryness
  4. customthe resulting crude residue was then triturated with diethylether

Quellen und Nachweise

ORD-Eintrag
ord-2d3089667ecd46d0abd5110fe40970dd
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08906939B2

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