Diethyl Ether → 9-Acetoxyxanthene

Participants

Reaction Steps

To 15 g. of 9-(N-methylcarbamoyloxy)xanthene, suspended in 200 ml. of dry ether, was added 18 ml. of glacial acetic acid with stirring. After one hour, the lower acid layer was removed. The ether phase was then cooled, neutralized with cold aqueous sodium bicarbonate, dried over anhydrous magnesium sulfate and concentrated in vacuo. The residue was recrystallized from benzene-hexane to give 9-acetoxyxanthene, m.p. 109°-112° C.

Provenance & Evidence