Phenol → Bisphenol S

反応式

[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.S(=O)(=O)(O)O.[CH:13]1[C:18]([OH:19])=[CH:17][CH:16]=[C:15]([S:20]([OH:23])(=[O:22])=[O:21])[CH:14]=1>>[CH:6]1[C:1]([OH:7])=[CH:2][CH:3]=[C:4]([S:20]([C:15]2[CH:16]=[CH:17][C:18]([OH:19])=[CH:13][CH:14]=2)(=[O:22])=[O:21])[CH:5]=1.[CH:5]1[CH:6]=[C:1]([OH:7])[C:2]([S:20]([C:15]2[CH:14]=[CH:13][C:18]([OH:19])=[CH:17][CH:16]=2)(=[O:22])=[O:23])=[CH:3][CH:4]=1

参加物

反応物 3

HCID 996Phenol

HCID 1118Sulfuric Acid

HCID 47654-Hydroxybenzenesulfonic acid

生成物 2

HCID 6626Bisphenol S

HCID 793812,4'-Dihydroxydiphenyl sulfone

実験手順

A reaction mixture comprising 4,4′-dihydroxydiphenylsulfone and 2,4′-dihydroxydiphenylsulfone can be obtained by mixing phenol and sulfuric acid and/or phenolsulfonic acid, followed by heating the resultant mixture and removing formed water by distillation as an azeotrope. It is preferable that the reaction is conducted under a reduced pressure. It is preferable that, where necessary, phenol is added during the reaction to supplement phenol removed to the outside of the system by the azeotropic distillation with water. In general, 4,4′-dihydroxydiphenylsulfone is formed in a greater amount than 2,4′-dihydroxydiphenylsulfone.