3-Allyl-4-methyl-4,5-epoxypentan-2-one → 2,4-Dimethyl-3-(prop-2-en-1-yl)furan

HRID 894156Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 894156
[CH2:1]([CH:4]([C:8]1([CH3:11])[O:10][CH2:9]1)[C:5](=O)[CH3:6])[CH:2]=[CH2:3]>CCOCC>[CH3:11][C:8]1[O:10][CH:9]=[C:5]([CH3:6])[C:4]=1[CH2:1][CH:2]=[CH2:3]

Komponenten

3

Edukt 1

HCID 132086283-Allyl-4-methyl-4,5-epoxypentan-2-one

Produkt 1

HCID 132086342,4-Dimethyl-3-(prop-2-en-1-yl)furanAusbeute 80,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 3283Diethyl EtherLösungsmittel

Reaktionsbedingungen

Temperatur
220 °C

Versuchsvorschrift

A mixture of 3-allyl-4-methyl-4,5-epoxypentan-2-one (4.5 g) and glass powder (0.90 g) was stirred at a bath temperature of 220° C. for 10 hours in a nitrogen gas stream. After reaction, ether was added to the reaction mass, followed by drying over anhydrous magnesium sulfate. After removing the solvent by evaporation, the residue was distilled under reduced pressure to obtain 3.2 g of 2,4-dimethyl-3-allylfuran as a pale yellow oil.

Aufarbeitung

  1. additionwas added to the reaction mass
  2. dry with materialby drying over anhydrous magnesium sulfate
  3. customAfter removing the solvent
  4. customby evaporation
  5. distillationthe residue was distilled under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-dad86084c0d841d6ada2d8b239c5b280
Quelldatensatz
uspto-grants-1981_08
Patentnummer
US04282372

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