Acetone → 1,4-Pentadien-3-one, 1,5-bis[4-(diethylamino)phenyl]-

Reaktionsgleichung

[CH2:1]([N:3]([CH2:12][CH3:13])[C:4]1[CH:11]=[CH:10][C:7]([CH:8]=O)=[CH:6][CH:5]=1)[CH3:2].[CH3:14][C:15]([CH3:17])=[O:16].[OH-].[Na+]>C(O)C>[CH2:1]([N:3]([CH2:12][CH3:13])[C:4]1[CH:11]=[CH:10][C:7]([CH:8]=[CH:14][C:15]([CH:17]=[CH:8][C:7]2[CH:10]=[CH:11][C:4]([N:3]([CH2:1][CH3:2])[CH2:12][CH3:13])=[CH:5][CH:6]=2)=[O:16])=[CH:6][CH:5]=1)[CH3:2]

Komponenten

Versuchsvorschrift

In 25 ml of anhydrous ethanol were dissolved 17.7 g of p-diethylaminobenzaldehyde and 2.9 g of acetone, and 1.5 ml of 10% aqueous NaOH was added dropwise to the resulting solution, after which the resulting mixture was subjected to reaction under reflux for 8 hours. The reaction mixture was cooled, and the crystals thus precipitated were collected by filtration and then recrystallized from toluene, to obtain 7.7 g of 1,3-bis(4'-diethylaminobenzal)acetone (m.p. 168° C.).