4-Aminophenol → HCID 12941116, compound

Participants

Reaction Steps

A mixture of 94.7 g (0.357 mol) of 11-bromoundecanoic acid and 70 ml of thionyl chloride was heated with a 90° oil bath until gas evolution had essentially stopped. Excess thionyl chloride was distilled from the reaction mixture under aspirator vacuum. Toluene (50 ml) was added and this was also distilled under aspirator vacuum. The cooled reaction mixture was then added to a slurry of 78.0 g (0.715 mol) of 4-aminophenol in 500 ml of dioxane. After stirring for 30 min the mixture was filtered and the solid was washed with hot dioxane. The combined filtrates were concentrated and the residue was recrystallized from chloroform to give the end product as colorless crystals, mp 116°-117°.

Provenance & Evidence