Acetic Acid → Methyl 3-(3,5-dimethoxyphenyl)-2-(4-isopropyloxyphenyl)-3-oxopropionate

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

14.4 g of 60% sodium hydride in mineral oil (0.36 mol) which are washed with 2 times 50 ml of toluene are introduced into a three-necked round-bottomed flask. 90 ml of toluene and 28.3 g of methyl 3,5-dimethoxybenzoate (0.144 mol) are then introduced. The mixture is brought to reflux and a solution of 30 g of methyl p-isopropyloxyphenylacetate (0.144 mol) dissolved in 95 ml of toluene is added over 10 h. The mixture is maintained at reflux for 2 h. It is cooled to a temperature of 0-5° C. and a solution of glacial acetic acid (22.5 g, i.e. 0.374 mol) in 25 ml of toluene is added slowly. Then, at ambient temperature, 135 ml of water are added slowly.

Herkunft & Nachweise