Potassium Carbonate → 2-Ethyl-3,6,6-trimethyl-1-crotonoyl-2-cyclohexene

HRID 435565Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 435565
[CH2:1]([C:3]1[CH:4]([C:12](=[O:16])[CH2:13][CH:14]=[CH2:15])[C:5]([CH3:11])([CH3:10])[CH2:6][CH2:7][C:8]=1[CH3:9])[CH3:2].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[CH2:1]([C:3]1[CH:4]([C:12](=[O:16])/[CH:13]=[CH:14]/[CH3:15])[C:5]([CH3:11])([CH3:10])[CH2:6][CH2:7][C:8]=1[CH3:9])[CH3:2]

Komponenten

4

Edukt 2

HCID 11430Potassium CarbonateHCID 214396681-(2-Ethyl-3,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-1-one

Produkt 1

HCID 214396692-Ethyl-3,6,6-trimethyl-1-crotonoyl-2-cyclohexeneAusbeute 91,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Versuchsvorschrift

A suspension of 3.5 g (15.9 mmol) of 2-ethyl-3,6,6-trimethyl-1-[but-3-enoyl]-2-cyclohexene and 2.0 g of potassium carbonate in 40 ml of acetone is stirred at room temperature under nitrogen for 24 hours. The salt is removed by filtration and the filtrate concentrated. After fractional distillation, the residue yields 3.2 g (91.5%) of 2-ethyl-3,6,6-trimethyl-1-crotonoyl-2-cyclohexene; boiling point 59°-60° C/0.04 mm Hg; nD20 = 1.4952.

Aufarbeitung

  1. customThe salt is removed by filtration
  2. concentrationthe filtrate concentrated
  3. distillationAfter fractional distillation

Quellen und Nachweise

ORD-Eintrag
ord-ee159bd06b994efb9828ec727f511a39
Quelldatensatz
uspto-grants-1977_02
Patentnummer
US04006108

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