4542-76-1

Basic information

• Product Name: Benzene, 1,1'-sulfonylbis[4-(bromomethyl)-
• Synonyms: Benzene, 1,1'-sulfonylbis[4-(bromomethyl)-
• CAS NO: 4542-76-1
• Molecular Formula: C14H12Br2O2S
• Molecular Weight: 404.122
• Mol File: 4542-76-1.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-sulfonylbis[4-(bromomethyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-sulfonylbis[4-(bromomethyl)-(4542-76-1)
• EPA Substance Registry System: Benzene, 1,1'-sulfonylbis[4-(bromomethyl)-(4542-76-1)

Safety Data

• Hazardous Substances Data: 4542-76-1(Hazardous Substances Data)

Upstream product

• 98-59-9 p-toluenesulfonyl chloride 
• 32047-89-5 N,N-bis-(4-tolyl)acetamide 
• 108-88-3 toluene 
• 90549-27-2 bis(4-(bromomethyl)phenyl)sulfane 
• 599-66-6 bis(4-methylphenyl) sulfone 

Downstream Products

• 2449-35-6 bis(4-carboxyphenyl)sulfone 
• 52123-62-3 (sulfonylbis(4,1-phenylene))dimethanol 
• 198555-21-4 bis[p-(dimethoxyphosphorylmethyl)phenyl] sulfone 
• 1196968-68-9 C₂₂H₃₂O₈P₂S 
• 861224-37-5 di{4-[(2-chlorocarbonylphenyloxy)methyl]phenyl}sulfone 
• 861224-36-4 di{4-[(2-carboxyphenyloxy)methyl]phenyl}sulfone 
• 101790-78-7 4,4'-Bis-acetoxymethyl-diphenylsulfon 
• 93522-36-2 4,4'-Bis-jodmethyl-diphenylsulfon 
• 1312845-02-5 C₂₀H₁₈N₄O₂S 
• 4393-20-8 4,4'-sulfonyl-bis-benzylamine 

Relevant articles and documents

A new class of bifunctional chiral phase transfer catalysts for highly enantioselective asymmetric epoxidation of α,β-unsaturated ketones at ambient temperature

A new type of bis-quaternary ammonium bromide as chiral multifunctional phase transfer catalysts derived from readily available inexpensive cinchona alkaloids has been developed and evaluated for the enantioselective asymmetric epoxidation of various chalcones in the presence of lower concentrations of various oxidants, bases, solvents and ambient temperature conditions. Under optimized reaction conditions, highest chemical yields of up to 98% along with the excellent enantioselectivities of about 99% were obtained by using the cinchona based chiral multifunctional phase transfer catalysts.

Donor-acceptor-donor fluorene derivatives for two-photon fluorescence lysosomal imaging

As part of a strategy to achieve large two-photon absorptivity in fluorene-based probes, a series of donor-acceptor-donor (D-A-D) type derivatives were synthesized and their two-photon absorption (2PA) properties investigated. The synthesis of D-A-D fluorophores was achieved by efficient preparation of key intermediates for the introduction of central electron acceptor groups. To accomplish the synthesis of two of the new derivatives, a high-yield method for a one-step direct dibromomethylation of phenyl sulfide was developed. The linear and nonlinear optical properties, including UV-vis absorption, fluorescence emission, fluorescence anisotropy, and two-photon absorption (2PA), of the new D-A-D compounds were measured and compared to their D-A or D-D counterparts. Fully conjugated acceptor moieties in the center of the D-A-D fluorophore led to the greatest increase in the 2PA cross section, while weakly conjugated central acceptors exhibited only a modest increase in the 2PA cross section relative to D-A diploar analogs. Encapsulation of the new probes in Pluronic F 108NF micelles, and subsequent incubation in HCT 116 cells, resulted in very high lysosomal colocalization (>0.98 colocalization coefficient) relative to commercial Lysotracker Red, making the micelle-encapsulated dyes particularly attractive as fluorescent probes for two-photon fluorescence microscopy lysosomal imaging.

Synthesis of cyclic polymers: Ring-expansion reaction of cyclic s-dithioester with thiiranes

The ring-expansion reaction of equimolar cyclic dithioester 1 with 3-phenoxypropyrene sulfide (PPS) (cyclic dithioester 1/PPS = 1/2) was examined in the presence of TBAC as a catalyst in NMP for 24 h, It was found that intermodular ester-exchange reaction