Hydrochloric Acid → Methyl 5-acetyl-2-methoxybenzoate

Beteiligte Stoffe

Reaktionsschritte

A mixture of 66.1 g (0.341 mole) of methyl 5-acetyl-2-hydroxybenzoate, 7.26 g (0.511 mole) of methyl iodide and 47.0 g (0.341 mole) of potassium carbonate in 400 ml of sieve-dried dimethylformamide is stirred at room temperature for 65 hours. The mixture is poured on 1.5 liters of N hydrochloric acid, extracted 6 times with ethyl ether, washed extract with water, NaHCO3 solution and cold 1 N NaOH, dried over Na2SO4, and evaporated solvent. Methyl 5-acetyl-2-methoxybenzoate, 51.3 g (72%) m.p. 95°-96° C., is obtained.

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