Phenol → Bisphenol S

HRID 1975862Notes

Reaction equation

HRID 1975862 reaction equation
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[OH:8][S:9]([OH:12])(=O)=O.O=S(=O)=O>ClC1C=CC=CC=1Cl>[CH:6]1[C:1]([OH:7])=[CH:2][CH:3]=[C:4]([S:9]([C:4]2[CH:5]=[CH:6][C:1]([OH:7])=[CH:2][CH:3]=2)(=[O:12])=[O:8])[CH:5]=1

Participants

4

Reactant 2

HCID 996PhenolHCID 24681Fuming sulfuric acid

Product 1

HCID 6626Bisphenol SYield 93%

Reagents, catalysts & solvents 1

HCID 72391,2-DichlorobenzeneSolvent

Procedure

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.

Sources & evidence

ORD record
ord-5fbc2e12c32d427ead3668c9c69e8c9e
Source dataset
uspto-grants-1994_02
Patent number
US05288913

Reaction notes

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