Methanesulfonic Acid → 4,4'-Dihydroxybenzophenone

Participants

Reaction Steps

Phenyl-4-hydroxybenzoate (5.0 g; 0.02 mole) was heated with 98% methane sulphonic acid (10 ml; 15.1 g; 0.16 mole) at 80° C. for 2 hours. The solution was poured into water and the solid product washed with water and dried at 110° C. in a vacuum oven to yield 4,4'-dihydroxy-benzophenone (infra-red spectrum indentical with that of an authentic sample); the yield was 3.4 g (68%).

Provenance & Evidence