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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1198213Erstellt: 24. Oktober 2026

Ethyl Acetoacetate → Ethyl 2Z-[(4-hexylphenyl)methylene]-3-oxobutanoate

https://huagongshe.com/de/reaction/1198213

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktEthyl AcetoacetateHCID 8868—
EduktBenzaldehyde, 4-hexyl-HCID 170813—
KatalysatorPiperidineHCID 8082—
ProduktEthyl 2Z-[(4-hexylphenyl)methylene]-3-oxobutanoateHCID 67820812—

Reaktionsbedingungen

Temperatur70 °C

Reaktionsschritte

Ethyl acetoacetate (3.9g, 0.03 moles), parahexylbenzaldehyde (3.8g, 0.02 moles) and piperidine (3 drops) were stirred at room temperature for 20 hrs. and then stirred for 4 days at 70° C. Products A and B were separated and purified by silica gel chromatography. Structure assignments were supported by NMR, infrared and uv spectra and elemental analysis (302.4).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05280047
Quelldatensatzuspto-grants-1994_01
ORD IDord-aa282224ed5b4f9c861e2e466cf56d88
Quellennotizuspto-grants-1994_01