Phenol → 4,4-Bis(4-hydroxyphenyl)valeric acid

Participants

Reaction Steps

376 g of phenol (4 mols), 116 g of levulinic acid (1 mol) and 0.4 ml of ethyl mercaptan were condensed, while stirring and simultaneously feeding in hydrogen chloride, for about 48 hours at 30°-40° C. The viscous reaction solution was taken up in ether and the ether phase was washed first with a sodium bicarbonate solution and then with water. After the ether had been eliminated, a brittle resin-like solid was obtained, m.p. 171°-173° C.

Provenance & Evidence