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

HRID 328665Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 328665
[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; nD 20 = 1.4952.

Aufarbeitung

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

Quellen und Nachweise

ORD-Eintrag
ord-ac78d4c37a6b4c37a7e2e3b07f04b601
Quelldatensatz
uspto-grants-1977_04
Patentnummer
US04018718

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