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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 36581Erstellt: 24. Oktober 2026

trans-1,4-Dibromo-2-butene → 2-(4-Bromobut-2-en-1-yl)isoindoline-1,3-dione

https://huagongshe.com/de/reaction/36581

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
Edukttrans-1,4-Dibromo-2-buteneHCID 641245—
EduktPhthalimide potassium saltHCID 24194345—
LösungsmittelDimethylformamideHCID 6228—
Produkt2-(4-Bromobut-2-en-1-yl)isoindoline-1,3-dioneHCID 10516841—

Reaktionsbedingungen

Temperatur50 °C

Reaktionsschritte

A mixture of trans-1,4-dibromo-2-butene (6.4 g, 30 mmol) and potassium phthalimide (5.6 g, 30 mmol) in anhydrous dimethyl formamide (200 ml) was heated at 50° C. for 24 h. Then the reaction mixture was concentrated in vacuo, dissolved in ethyl acetate, washed with brine and the pure title product was obtained by flash chromatography on silica gel (ethyl acetate: hexane; 15:85) (3.2 g, 40%).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05416076
Quelldatensatzuspto-grants-1995_05
ORD IDord-ee15fbcd76dc40cc8c92ef9b7b59c2d5
Quellennotizuspto-grants-1995_05