18922-22-0

Basic information

• Product Name: benzophenone-4,4'-disulfonyl chloride
• Synonyms: benzophenone-4,4'-disulfonyl chloride
• CAS NO: 18922-22-0
• Molecular Weight: 379.242
• Mol File: 18922-22-0.mol

Chemical Properties

• CAS DataBase Reference: benzophenone-4,4'-disulfonyl chloride(CAS DataBase Reference)
• NIST Chemistry Reference: benzophenone-4,4'-disulfonyl chloride(18922-22-0)
• EPA Substance Registry System: benzophenone-4,4'-disulfonyl chloride(18922-22-0)

Safety Data

• Hazardous Substances Data: 18922-22-0(Hazardous Substances Data)

Upstream product

• 3119-64-0 diphenylmethane-4,4'-disulfonyl chloride 
• 97586-33-9 1,1-dichloro-2,2-diphenylethene-4,4'-disulfonyl chloride 
• 90-98-2 4,4'-Dichlorobenzophenone 
• 72-55-9 1,1-bis(4-chlorophenyl)-2,2-dichloroethylene 
• 101-81-5 Diphenylmethane 
• 2779-69-3 1,1-dichloro-2,2-diphenylethene 

Downstream Products

• 97586-06-6 benzophenone-4,4'-disulfonamide 

Relevant articles and documents

KINETICS OF HYDROLYSIS OF AROMATIC BICYCLING DISULFONYL DICHLORIDES

Hydrolysis of 16 compounds ClO2S-Ar-B-Ar-SO2Cl (B, bridge) in 20percent H2O, 80percent v/v CH3CO2H, 0.5 mol dm-3 CH3CO2Na at 298.15 K has been investigated by a polarographic method.From plots of the hydrolysis, pseudo-first-order rate constants for two consecutive reactions have been computed and the influence of -SO2Cl groups, bridges B, and SO3(1-) groups on the reactivity of -SO2Cl groups has been discussed.The ratio of rate constants k2/k1 ranges from 0.45 to 30, depending on the structure.Log (k1/(2kH)) correlated linearly with ? m,p -B-C6H5 and log (k2/k1) correlated linearly with ΔpK for the analogous diamine series H2N-Ar-B-Ar-NH2.

SYNTHESIS OF BENZOPHENONE-4,4'-DISULFONYL CHLORIDE

Benzophenone-4.4'-disulfonyl chloride was synthesized from 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane, diphenylmethane-4,4'-disulfonyl chloride, or 1,1-dichloro-2,2-diphenylethene-4,4'-disulfonyl chloride by a series of consecutive reactions.