56486-79-4

Basic information

• Product Name: 4,4'-Sulfonylbis(2-bromophenol)
• Synonyms: 4,4'-Sulfonylbis(2-bromophenol);Bis(3-bromo-4-hydroxyphenyl) sulfone
• CAS NO: 56486-79-4
• Molecular Formula: C₁₂H₈Br₂O₄S
• Molecular Weight: 408.06
• Mol File: 56486-79-4.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4,4'-Sulfonylbis(2-bromophenol)(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-Sulfonylbis(2-bromophenol)(56486-79-4)
• EPA Substance Registry System: 4,4'-Sulfonylbis(2-bromophenol)(56486-79-4)

Safety Data

• Hazardous Substances Data: 56486-79-4(Hazardous Substances Data)

Upstream product

• 104036-73-9 2,2'-dibromo-4,4'-sulfinyl-di-phenol 
• 95-56-7 2-hydroxybromobenzene 

Downstream Products

• 7545-50-8 3,3'-diamino-4,4'-dihydroxydiphenyl sulfone 
• 103167-10-8 bis-(4-benzoyloxy-3-bromo-phenyl)-sulfone 

Relevant articles and documents

Preparation method of 3,3'-diamino-4,4'dyhydroxy diphenyl sulfone

The invention relates to a preparation method of 3,3'-diamino-4,4'-dyhydroxy diphenyl sulfone. 2-bromophenol and potassium hydrogen persulfate are heated to 50 DEG C to have a reaction in a mixed solution of trifluoromethanesulfonic acid, trifluoromethanesulfonic anhydride and chloroform, a solvent is evaporated under reduced pressure after the reaction of the raw materials is completely finished, the temperature is reduced, solids are precipitated, filtering is performed, a filter cake is washed with a sodium acetate aqueous solution, and 3,3'-dibromo-4,4'-dyhydroxy diphenyl sulfone is obtained after washing and drying; 3,3'-dibromo-4,4'-dyhydroxy diphenyl sulfone is dissolved in N-methyl pyrrolidone and has a reaction with ammonium hydroxide at the temperature of 150 DEG C, a solvent is evaporated after the reaction of the raw material is completely finished, a remaining reaction solution is poured into water, and 3,3'-diamino-4,4'-dyhydroxy diphenyl sulfone is prepared after filtering, washing and drying. The method has the advantages that a few reaction steps are required, raw materials are easy to purchase, requirements for production equipment are low, the yield is high, the operation is simple, the repeatability is good, the solvents can be recycled and the like.