Kojic Acid → 4H-Pyran-4-one, 2-(hydroxymethyl)-5-[(4-methoxyphenyl)methoxy]-

Participants

Reaction Steps

To a suspension of kojic acid (50 g: 0.32 Mol.) in dimethylformamide (300 ml) are added potassium carbonate (63 g: 1.42 Eq.) and p-methoxybenzyl bromide (92 g: 1.42 Eq.), and the mixture is stirred at room temperature for 2 hours. The reaction mixture is diluted with water (1liter) to give 5-p-methoxybenzyloxy-2-hydroxymethyl-4-pyrone (74.5 g). Yield: 81%. mp. 124°~130° C.

Provenance & Evidence