Veratrole → 3-Chloro-1-(3,4-dimethoxyphenyl)propan-1-one

Reaktionsgleichung

[Cl:1][CH2:2][CH2:3][C:4](Cl)=[O:5].[CH3:7][O:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=1[O:15][CH3:16].[Cl-].[Al+3].[Cl-].[Cl-]>>[Cl:1][CH2:2][CH2:3][C:4]([C:12]1[CH:13]=[CH:14][C:9]([O:8][CH3:7])=[C:10]([O:15][CH3:16])[CH:11]=1)=[O:5]

Komponenten

Edukt 3

HCID 7043Veratrole

HCID 693643-Chloropropionyl chloride

HCID 6451240Aluminum(III) Chloride

Produkt 1

HCID 2446793-Chloro-1-(3,4-dimethoxyphenyl)propan-1-one

Versuchsvorschrift

Further, Patent Document 2 discloses that 3-chloropropionyl chloride was reacted with 1,2-dimethoxybenzene in the presence of aluminum chloride to produce 3-chloro-3′,4′-dimethoxypropiophenone in situ. To the reaction mixture concentrated sulfuric acid was added and the reaction was allowed to proceed at 70° C. The resulting product was then purified by silica gel column chromatography to give 5,6-dimethoxy-1-indanone with a yield of 40%. However, silica gel chromatography as used in the above method is a cumbersome method, and further, a problem of the above method is low yield.