Ethanol → 4-(Diethylamino)-2-hydroxybenzaldehyde

Participants

Reaction Steps

In 25 ml of ethanol, 1.82 g of the compound obtained in (1) and 1.06 g of 4-diethylaminosalicylaldehyde were dissolved, followed by heating to 100° C. To the resulting solution, 0.7 ml of piperidine was added and the mixture was heated under reflux for 2 hours. Then, the solution was ice-cooled. The colorless crystals so precipitated were collected by filtration, washed with ethanol and dried under vacuum for 2 days, whereby 0.83 g of the decolorizable compound I-1 was obtained.

Provenance & Evidence