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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 339980Erstellt: 25. Oktober 2026

Dimethylformamide → 5-Bromo-3-methylpyridine-2-carbonitrile

https://huagongshe.com/reaction/339980

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktDimethylformamideHCID 6228—
Edukt2,5-Dibromo-3-methylpyridineHCID 817680—
EduktHCID 178418260HCID 178418260—
Produkt5-Bromo-3-methylpyridine-2-carbonitrileHCID 2077500749,4%

Reaktionsbedingungen

Temperatur120 °C

Reaktionsschritte

To a solution of 2,5-dibromo-3-methylpyridine (5.0 g, 20. mmol) in N,N-dimethylformamide (20.0 mL, 259 mmol) was added copper cyanide (1.8 g, 20. mmol) and the reaction was stirred at 120° C. for 12 h. The reaction was partitioned between EtOAc and water. The organic layer was washed with brine, dried over sodium sulfate, filtered, concentrated and purified by combi-flash chromatography to afford 1.94 g (49% yield) of the desired product as a white solid.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08895571B2
Quelldatensatzuspto-grants-2014_11
ORD IDord-52a681ab55184b49a6001931513cf1c5
Quellennotizuspto-grants-2014_11