Hydrochloric Acid → (E)-3-(5-ethyl-4-hydroxy-3-methoxy-1-naphthyl)-2-methylpropenoic acid

Participants

Reaction Steps

23 g of (E)-3-(5-ethyl-3-methoxy-4-methoxymethoxy-1-naphthyl)-2-methylpropenoic acid was dissolved in 230 ml of acetone and 15 ml of concentrated hydrochloric acid was added slowly at room temperature. After stirring at room temperature for 1.5 hours, the reaction mixture was gradually poured into 3.5 liters of water. The resultant crystals were filtered, washed with water and dried to obtain 19 g of the titled compound as pale yellow crystals.

Provenance & Evidence