66229-26-3

Basic information

• Product Name: Benzene,1,1'-[[(trichloromethyl)sulfonyl]methylene]bis[4-chloro-
• Synonyms: NSC 294568
• CAS NO: 66229-26-3
• Molecular Formula: C14H9 Cl5 O2 S
• Molecular Weight: 418.555
• Mol File: 66229-26-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Benzene,1,1'-[[(trichloromethyl)sulfonyl]methylene]bis[4-chloro-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene,1,1'-[[(trichloromethyl)sulfonyl]methylene]bis[4-chloro-(66229-26-3)
• EPA Substance Registry System: Benzene,1,1'-[[(trichloromethyl)sulfonyl]methylene]bis[4-chloro-(66229-26-3)

Safety Data

• Hazardous Substances Data: 66229-26-3(Hazardous Substances Data)

Upstream product

• 2547-61-7 Trichloromethanesulfonyl chloride 
• 90-97-1 4,4'-dichlorobenzophenone 

Downstream Products

• 72-55-9 1,1-bis(4-chlorophenyl)-2,2-dichloroethylene 

Relevant articles and documents

Ramberg-Backlund rearrangement vs. β-Elimination of haloform from trichloro and trifluoromethyl sulfones

A new and convenient method for the preparation of trichloro and trifluoromethanesulfinates is described. These esters readily undergo rearrangement to the corresponding sulfones at room temperature, in high yields. In contrast to trichloromethyl sulfoxides which undergo base-induced β-elimination of chloroform to sulfines, the corresponding sulfones undergo an unusually facile Ramberg-Backlund rearrangement with formation of dichloromethylene products. Replacement of CCl3 by CF3 results in complete loss of reactivity, even under drastic basic conditions.