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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 45780Erstellt: 24. Oktober 2026

Sodium Carbonate → 4-(3-Chloropyrazin-2-yl)-1-naphthonitrile

https://huagongshe.com/de/reaction/45780

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktSodium CarbonateHCID 10340—
Edukt2,3-DichloropyrazineHCID 78575—
Edukt4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-naphthonitrileHCID 67997556—
Lösungsmittel1,4-DioxaneHCID 31275—
Produkt4-(3-Chloropyrazin-2-yl)-1-naphthonitrileHCID 86691452242,8%

Reaktionsbedingungen

Temperatur80 °C

Reaktionsschritte

A mixture of 2,3-dichloropyrazine (2.98 g, 2 mmol), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-naphthonitrile (0.558 mmol, 2 mmol) palladium tetrakis triphenylphoshine (0.069 g, 0.06 mmol) and aqueous sodium carbonate solution (2M, 3 mL, 6 mmol) in dioxane (7 mL) was heated to 80° C. for 12 hours. The reaction mixture cooled to room temperature, washed with water, extracted with ethyl acetate and purified by chromatography to yield 4-(3-chloropyrazin-2-yl)-1-naphthonitrile (0.36 g, 68%).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08541589B2
Quelldatensatzuspto-grants-2013_09
ORD IDord-c8158e5459884ad6907ccb259ea092f2
Quellennotizuspto-grants-2013_09