Sodium Cyanide → 5-Bromopyrimidine-2-carbonitrile

HRID 222653

Reaktionsgleichung

Reaktionsgleichung von HRID 222653
[C-:1]#[N:2].[Na+].[Br:4][C:5]1[CH:6]=[N:7][C:8](Cl)=[N:9][CH:10]=1>CN(C)C=O.O>[Br:4][C:5]1[CH:6]=[N:7][C:8]([C:1]#[N:2])=[N:9][CH:10]=1

Komponenten

5

Edukt 2

HCID 8929Sodium CyanideHCID 6066655-Bromo-2-chloropyrimidine

Produkt 1

HCID 6865465-Bromopyrimidine-2-carbonitrile

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

Sodium cyanide (2.30 g, 46.6 mmol) was dissolved in dimethylformamide (60 ml) and treated with 5-bromo-2-chloropyrimidine (6.0 g, 31.1 mmol). The resulting mixture was stirred at room temperature for 18 hours, diluted with water and extracted with dichloromethane. The dichloromethane extracts were combined, washed with water, dried (magnesium sulphate), filtered and concentrated in vacuo. The crude product was purified by column chromatography eluting with a mixture of ethyl acetate:hexane (1:4) to afford the title compound (D38).

Aufarbeitung

  1. extractionextracted with dichloromethane
  2. washwashed with water
  3. dry with materialdried (magnesium sulphate)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe crude product was purified by column chromatography
  7. washeluting with a mixture of ethyl acetate:hexane (1:4)

Quellen und Nachweise

ORD-Eintrag
ord-a84687f9b7854a1796316c632dea7ae1
Quelldatensatz
uspto-grants-2012_06
Patentnummer
US08207331B2

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