85137-69-5

Basic information

• Product Name: Benzene, 1,4-bis[2-(4-bromophenyl)ethenyl]-
• CAS NO: 85137-69-5
• Molecular Formula: C22H16Br2
• Molecular Weight: 440.17000
• Mol File: 85137-69-5.mol
• Article Data: 12

Chemical Properties

• CAS DataBase Reference: Benzene, 1,4-bis[2-(4-bromophenyl)ethenyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,4-bis[2-(4-bromophenyl)ethenyl]-(85137-69-5)
• EPA Substance Registry System: Benzene, 1,4-bis[2-(4-bromophenyl)ethenyl]-(85137-69-5)

Safety Data

• Hazardous Substances Data: 85137-69-5(Hazardous Substances Data)

Upstream product

• 2039-82-9 1-bromo-4-ethenyl-benzene 
• 106-37-6 1.4-dibromobenzene 
• 624-38-4 para-diiodobenzene 
• 623-27-8 terephthalaldehyde, 
• 51044-13-4 4-bromobenzyl triphenylphosphonium bromide 
• 623-24-5 1,4-bis(bromomethyl)benzene 
• 35335-17-2 [2,5-dibromo-4-(diethoxyphosphorylmethyl)-benzyl]phosphonic acid diethyl ester 
• 1122-91-4 4-bromo-benzaldehyde 
• 1074-24-4 2,5-dibromo-p-xylene 
• 35335-16-1 1,4-bis(bromomethyl)-2,5-dibromobenzene 
• 1123168-00-2 1,3-bis[(E)-4-bromostyryl]tetramethyldisiloxane 
• 589-15-1 1-bromomethyl-4-bromobenzene 
• 106-42-3 para-xylene 
• 4546-04-7 tetraethyl 1,4-xylylenediphosphonate 

Downstream Products

• 155600-95-6 4-((E)-2-(4-[(E)-2-(4-formylphenyl)ethenyl]phenyl)ethenyl)benzaldehyde 
• 1388147-82-7 1,4-bis[(E)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)styryl]benzene 
• 16726-75-3 1,4-bis((E)-2-([1,1′-biphenyl]-4-yl)vinyl)benzene 
• 1542608-66-1 cis,cis-1,4-bis(diimidazolylbenzene)diethenylbenzene 
• 77547-84-3 1,4-Bis(4-formylstyryl) benzene 
• 156816-40-9 (E,E,E,E)-tetraethyl 1,4-phenylenebis(1,2-ethenyl-4-phenyl-1,2-ethenyl-4-phenylphosphonate) 
• 131941-39-4 1,4-bis[2-(4-bromophenyl)ethynyl]benzene 

Relevant articles and documents

A magnetic palladium nickel carbon nanocomposite as a heterogeneous catalyst for the synthesis of distyrylbenzene and biphenyl derivatives

A magnetic palladium nickel carbon (Fe3O4@Pd@Ni/C) nanocomposite has been synthesized using a simple one-pot procedure via a hydrothermal approach. Ferric nitrate, palladium acetate, and nickel nitrate were dissolved in water together with glucose, and the mixture was heated in an autoclave. The Fe3O4@Pd@Ni/C nanocomposite was characterized via XRD, TEM, FE-SEM, VSM, EDS, and XPS studies. The catalytic abilities of the Fe3O4@Pd@Ni/C nanocomposite were investigated for the synthesis of distyrylbenzene and 9,10-distyrylanthracene derivatives. This method shows obvious advantages, such as the recyclability of the catalyst, simple experimental operation, and the obtaining of good to excellent yields.

Polyaniline-anchored palladium catalyst-mediated Mizoroki-Heck and Suzuki-Miyauraa reactions and one-pot Wittig-Heck and Wittig-Suzuki reactions

A polyaniline-anchored palladium catalyst was prepared and screened for coupling reactions of aryl halides. The robust and recyclable catalyst was effective in Mizoroki-Heck and Suzuki-Miyaura reactions of aryl bromides and aryl iodides. The catalyst system was further employed for one-pot Wittig-Heck and Wittig-Suzuki combinations to build conjugated compounds in good conversions.

Gold(I) styrylbenzene, distyrylbenzene, and distyrylnaphthalene complexes: High emission quantum yields at room temperature

One gold(I)-substituted styrylbenzene, six digold(I) distyrylbenzenes, one tetragold distyrylbenzene, and four digold distyrylnaphthalene complexes were synthesized using base-promoted auration, alkynylation, triazolate formation, and Horner-Wadsworth-Emmons reactions. The gold(I) fragments are either σ-bonded to the aromatic system, or they are attached through an alkynyl or triazolate spacer. Product formation was monitored using 31P{ 1H} NMR spectroscopy. Systems in which gold(I) binds to the central benzene ring or the terminal phenyl rings were designed. All of these complexes have strong ultraviolet absorptions and emit blue light. The position of the gold(I) attachment influences the luminescence efficiency. Complexes with two gold(I) fragments attached to the ends of the conjugated system have fluorescence quantum yields up to 0.94, when using 7-diethylamino-4- methylcoumarin as the emission standard. Density-functional theory calculations on three high-yielding emitters suggest that luminescence originates from the distyrylbenzene or -naphthalene bridge. Copyright