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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 56732Erstellt: 24. Oktober 2026

Pyridinium hydrochloride → 4-Chloro-2-[2-oxo-5-(trifluoromethyl)-1,2-dihydropyridin-4-yl]benzonitrile

https://huagongshe.com/de/reaction/56732

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktPyridinium hydrochlorideHCID 21584435—
Edukt4-Chloro-2-[2-methoxy-5-(trifluoromethyl)pyridin-4-yl]benzonitrileHCID 117605758—
Produkt4-Chloro-2-[2-oxo-5-(trifluoromethyl)-1,2-dihydropyridin-4-yl]benzonitrileHCID 117605627—

Reaktionsschritte

450 mg (purity 71%, 1.02 mmol) of 4-chloro-2-[2-methoxy-5-(trifluoromethyl)pyridin-4-yl]benzonitrile and 20 eq. of pyridinium hydrochloride were reacted according to General Method 3A. After aqueous work-up, the crude product was purified by flash chromatography (silica gel 60, dichloromethane/methanol mixtures). Yield: 456 mg (purity 86%, quant.)

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS09434690B2
Quelldatensatzuspto-grants-2016_09
ORD IDord-d36814fdac9b4e77a07bdbd443b15151
Quellennotizuspto-grants-2016_09