Water → 5-Methylpicolinonitrile

HRID 632022

Reaktionsgleichung

Reaktionsgleichung von HRID 632022
F[C:2]1[CH:7]=[CH:6][C:5]([CH3:8])=[CH:4][N:3]=1.[C-:9]#[N:10].[Na+].O>CS(C)=O>[CH3:8][C:5]1[CH:6]=[CH:7][C:2]([C:9]#[N:10])=[N:3][CH:4]=1

Komponenten

5

Edukt 3

HCID 962WaterHCID 8929Sodium CyanideHCID 27746352-Fluoro-5-methylpyridine

Produkt 1

HCID 741835-MethylpicolinonitrileAusbeute 30,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 679Dimethyl SulfoxideLösungsmittel

Versuchsvorschrift

A solution of 2-fluoro-5-methylpyridine (CAN: 2369-19-9, 10 g, 90 mmol) and sodium cyanide (8.8 g, 180 mmol) in DMSO (15 mL) was heated to 150° C. for 48 h. Then water was added, the resulting mixture was extracted with ethyl acetate (3×50 mL) and the combined extracts were washed with sodium hypochlorite solution and brine, dried over anhydrous sodium sulfate and evaporated. The residue was purified by column chromatography (silica gel, 40 g, 10% ethyl acetate in petroleum ether) to yield the title compound (3.2 g, 27 mmol, 30.1%) as yellow solid; MS (EI): m/e=119.1 [M+H]+.

Aufarbeitung

  1. extractionthe resulting mixture was extracted with ethyl acetate (3×50 mL)
  2. washthe combined extracts were washed with sodium hypochlorite solution and brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customevaporated
  5. customThe residue was purified by column chromatography (silica gel, 40 g, 10% ethyl acetate in petroleum ether)

Quellen und Nachweise

ORD-Eintrag
ord-94eb4c8212f740ca89f8f222a1a76071
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09321727B2

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