Sodium Cyanide → 6-Amino-4-methylnicotinonitrile

HRID 1740948

Reaktionsgleichung

Reaktionsgleichung von HRID 1740948
[NH2:1][C:2]1[CH:7]=[C:6]([CH3:8])[C:5](Br)=[CH:4][N:3]=1.[Cu][C:11]#[N:12].[C-]#N.[Na+]>CN(C)C=O.O>[NH2:1][C:2]1[CH:7]=[C:6]([CH3:8])[C:5]([C:11]#[N:12])=[CH:4][N:3]=1

Komponenten

6

Edukt 3

HCID 8929Sodium CyanideHCID 8176952-Amino-5-bromo-4-methylpyridineHCID 178418546HCID 178418546, Verbindung

Produkt 1

HCID 99641036-Amino-4-methylnicotinonitrile

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A mixture of 2-amino-5-bromo-4-methylpyridine (4.0 g, 21.4 mmol) and copper(I) cyanide (2.2 g, 24.6 mmol) in N,N-dimethylformamide (5 mL) was stirred for 4 h at reflux temperature. The hot mixture was poured into a warm solution of sodium cyanide (4.3 g) in water (13 mL). After the mixture was vigorously shaken, the mixture was extracted with ethyl acetate. The organic extract was washed with 10% aqueous sodium cyanide, saturated brine solution and evaporated. The title compound was obtained as a solid after chromatography on silica gel (15% acetone/hexane); yield 1.81 g (64%).

Aufarbeitung

  1. temperatureat reflux temperature
  2. stirringAfter the mixture was vigorously shaken
  3. extractionthe mixture was extracted with ethyl acetate
  4. extractionThe organic extract
  5. washwas washed with 10% aqueous sodium cyanide, saturated brine solution
  6. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-91262695ff1a4c09be98dce544f04b85
Quelldatensatz
uspto-grants-1999_10
Patentnummer
US05972975

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