反应详情

100 g. of 1,1-diethoxy-4-methyl-2,4-hexadien-6-ol are shaken for 20 minutes with 200 ml. of ether and 10 ml. of 3N hydrochloric acid and then treated with 20 g. of potassium carbonate, filtered, and the 4-methyl-6-hydroxy-2,4-hexadien-1-al, which is obtained almost quantitatively, is used without isolation in ethereal solution for the next step.

1. filtrationof potassium carbonate, filtered