Potassium Carbonate → Methyl 4-(4-methoxybenzoyl)phenoxyacetate

Reaktionsgleichung

[OH:1][C:2]1[CH:17]=[CH:16][C:5]([C:6]([C:8]2[CH:13]=[CH:12][C:11]([O:14][CH3:15])=[CH:10][CH:9]=2)=[O:7])=[CH:4][CH:3]=1.C([O-])([O-])=O.[K+].[K+].Br[CH2:25][C:26]([O:28][CH3:29])=[O:27]>CC(C)=O>[CH3:15][O:14][C:11]1[CH:12]=[CH:13][C:8]([C:6]([C:5]2[CH:16]=[CH:17][C:2]([O:1][CH2:25][C:26]([O:28][CH3:29])=[O:27])=[CH:3][CH:4]=2)=[O:7])=[CH:9][CH:10]=1

Komponenten

Versuchsvorschrift

29.1 g of 4-hydroxy-4'-methoxybenzophenone (R. Martin et al., Monatsh, Chemie 110, 1057-1066 (1979)) are dissolved in 400 ml of dry acetone. Then, while stirring, 19.3 g of finely powdered K2CO3 and 16 ml of methyl bromoacetate are added, and the mixture is stirred at room temperature. The reaction is complete after 2 days. The precipitated mixture of salt and substance is filtered off with suction, and the filtrate is concentrated. Both residues are suspended in water, and the pH is adjusted to 3 with 2N HCl. The solid is filtered off with suction, washed with water and dried under high vacuum in a desiccator.