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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1494086Erstellt: 25. Oktober 2026

Diethyl Malonate → Diethyl 2-pent-4-enylpropanedioate

https://huagongshe.com/reaction/1494086

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktDiethyl MalonateHCID 7761—
Edukt1-Pentene, 5-bromo-HCID 70704—
EduktSodiumHCID 5360545—
LösungsmittelEthanolHCID 702—
ProduktDiethyl 2-pent-4-enylpropanedioateHCID 361718—

Reaktionsschritte

To 300 mL of ethanol are added 5 g of sodium spheres and after a clear solution is obtained, 32.1 g of diethyl malonate is added in one portion. After 1 hour at room temperature, 15 g of 5-bromopent-1-ene is added and the reaction mixture is stirred at room temperature for 16 hours. The reaction mixture is evaporated to dryness and the residue is distilled under high vacuum to obtain diethyl pent-4-enylmalonate.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05025025
Quelldatensatzuspto-grants-1991_06
ORD IDord-c794d2b781404eb9bf90b823205e2353
Quellennotizuspto-grants-1991_06