Veratrole → 2-(3,4-Dimethoxybenzoyl)-6-methylpyridine
Reaktionsgleichung
[CH3:1][C:2]1[N:7]=[C:6]([C:8](Cl)=[O:9])[CH:5]=[CH:4][CH:3]=1.[Cl-].[Al+3].[Cl-].[Cl-].[CH3:15][O:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[O:23][CH3:24]>ClCC(Cl)(Cl)Cl>[CH3:15][O:16][C:17]1[CH:22]=[C:21]([CH:20]=[CH:19][C:18]=1[O:23][CH3:24])[C:8]([C:6]1[CH:5]=[CH:4][CH:3]=[C:2]([CH3:1])[N:7]=1)=[O:9]Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To an ice-cooled, stirred suspension of 6-methylpicolinic acid chloride and 2 equivalents of aluminum chloride in tetrachloroethane is added slowly an equivalent amount of 1,2-dimethoxybenzene. The reaction mixture is allowed to come to room temperature overnight, then decomposed over cracked ice. Extractive workup followed by chromatography of the organic residue gives the desired ketone.