4-Chlorobenzaldehyde → HCID 54524986, Verbindung
Reaktionsgleichung
[OH-].[Na+].[Cl:3][C:4]1[CH:11]=[CH:10][C:7]([CH:8]=O)=[CH:6][CH:5]=1.[C:12]1([CH:18]([CH2:22][CH:23]=[CH:24][C:25]2[CH:30]=[CH:29][C:28]([CH3:31])=[CH:27][CH:26]=2)[C:19](=[O:21])[CH3:20])[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1>C(O)C>[Cl:3][C:4]1[CH:11]=[CH:10][C:7]([CH:8]=[CH:20][C:19](=[O:21])[CH:18]([C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH2:22][CH:23]=[CH:24][C:25]2[CH:26]=[CH:27][C:28]([CH3:31])=[CH:29][CH:30]=2)=[CH:6][CH:5]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A sodium hydroxide solution (8 ml., 20%) is added to a solution of p-chlorobenzaldehyde (20.4 g., 0.14 mole) and crude 3-phenyl-6-(p-methylphenyl)-5-hexen-2-one (Step A, above) in ethanol (350 ml.) with stirring. The off-white solid that separates on continued stirring is filtered, washed with cold ethanol and air-dried, yield 44 g., m.p. 114°-118°C. Recrystallization from ethanol gives material with m.p. 134°-136.5°C.