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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 236225Erstellt: 26. Oktober 2026

Acetic Acid → (3,3-Dimethylbutan-2-ylidene)propanedinitrile

https://huagongshe.com/reaction/236225

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktAcetic AcidHCID 176—
EduktPinacoloneHCID 6416—
EduktMalononitrileHCID 8010—
EduktAmmonium AcetateHCID 517165—
LösungsmittelTolueneHCID 1140—
Produkt(3,3-Dimethylbutan-2-ylidene)propanedinitrileHCID 53432668,4%

Reaktionsschritte

A solution of 9.9 g of malononitrile, 26.25 g of 3,3-dimethyl-2-butanone, 1.45 g of ammonium acetate and 2.25 g of acetic acid dissolved in 100 ml of toluene was refluxed for about 16 hours with the aid of a Dean-Stark Trap. The reaction mixture was diluted with 120 ml of toluene and washed with 200 ml water. The organic phase was collected, dried over anhydrous magnesium sulfate, filtered and concentrated under vacuum. The resulting residue was distilled under vacuum to afford 15.2 g of 2-(1,1-dimethylethyl)-1,1-dicyano-1-propene as an oil. Yield 68%.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS04643758
Quelldatensatzuspto-grants-1987_02
ORD IDord-aa5428eb78a445e4ae7e7564a987dd8c
Quellennotizuspto-grants-1987_02