Sulfuric Acid → 1,3,5-Tri(4-bromophenyl)benzene

Participants

Reaction Steps

A mixture of 0.8 kg of 4-bromoacetophenone by Sigma-Aldrich Japan, KK., 40 ml of sulfuric acid and 1.2 kg of potassium disulfate was stirred at 180° C. for 18 hours. After stirring, 3.0 L of ethanol was added to the mixture, which was heated to reflux for 7 hours. It was then allowed to naturally cool to room temperature, producing a precipitate which was filtered out. After adding 3.0 L of water to the filtered precipitate and heating to reflux for 1 hour, the reaction mixture was allowed to naturally cool to room temperature. The reaction mixture was filtered and rinsed with 0.5 L of ethanol. In this manner there was obtained 0.58 kg of 1,3,5-tris(p-bromophenyl)benzene.

Provenance & Evidence