Phenol → Bisphenol S

Participants

Reaction Steps

188 g of phenol were reacted with 89 g of 65% strength oleum in the presence of 272 g of o-dichlorobenzene analogously to Example 1. When the reaction had ended, the 4,4'-dihydroxydiphenyl sulfone formed was filtered off directly from the reaction mixture with suction. 234 g of reaction product were obtained, which corresponds to a yield of 93% of theory, based on the phenol. The content of 4,4'-dihydroxydiphenyl sulfone (high performance liquid chromatography) was 79% by area.

Provenance & Evidence