Acetone → o-Anisalacetone

HRID 1262575

Reaktionsgleichung

Reaktionsgleichung von HRID 1262575
[OH-].[Na+].[CH3:3][C:4]([CH3:6])=[O:5].[CH:7](=O)[C:8]1[C:9]([O:14][CH3:15])=[CH:10][CH:11]=[CH:12][CH:13]=1>O>[CH:7](=[CH:3][C:4](=[O:5])[CH3:6])[C:8]1[C:9]([O:14][CH3:15])=[CH:10][CH:11]=[CH:12][CH:13]=1

Komponenten

5

Edukt 3

HCID 180AcetoneHCID 86582-MethoxybenzaldehydeHCID 14798Sodium Hydroxide

Produkt 1

HCID 139181o-Anisalacetone

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

o-Anisalacetone is prepared by adding 70 ml of 10% aqueous sodium hydroxide to 7.7 moles of acetone, 280 ml of water, and 2.8 moles of o-anisaldehyde, slowly with cooling to maintain the temperature in the range of 25°-31° C. Another 2 hours stirring followed by acidification, separation of layers, dehydration with acid in benzene at reflux, and finally distillation at reduced pressure gives the crude o-anisalacetone.

Aufarbeitung

  1. customo-Anisalacetone is prepared
  2. temperatureslowly with cooling
  3. temperatureto maintain the temperature in the range of 25°-31° C
  4. customfollowed by acidification, separation of layers, dehydration with acid in benzene
  5. temperatureat reflux
  6. distillationfinally distillation at reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-7dc5057403ef4783aada7e8e09267a93
Quelldatensatz
uspto-grants-1984_06
Patentnummer
US04452801

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