20657-43-6

Basic information

• Product Name: Benzene, 1,1'-(1,2-ethenediyl)bis[2-chloro-, (Z)-
• CAS NO: 20657-43-6
• Molecular Formula: C14H10Cl2
• Molecular Weight: 249.139
• Mol File: 20657-43-6.mol
• Article Data: 10

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-(1,2-ethenediyl)bis[2-chloro-, (Z)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-(1,2-ethenediyl)bis[2-chloro-, (Z)-(20657-43-6)
• EPA Substance Registry System: Benzene, 1,1'-(1,2-ethenediyl)bis[2-chloro-, (Z)-(20657-43-6)

Safety Data

• Hazardous Substances Data: 20657-43-6(Hazardous Substances Data)

Upstream product

• 107135-19-3 N’-(2-chlorobenzylidene)-4-methylbenzenesulfonohydrazide 
• 611-19-8 1-chloro-2-(chloromethyl)benzene 
• 25144-38-1 (E)-2,2'-dichlorostilbene 
• 1334478-54-4 Br^(1-)*C₂₀H₁₆Cl₂N₃⁽¹⁺⁾ 
• 89-98-5 2-chloro-benzaldehyde 
• 62640-67-9 1-(2'-chlorobenzyl)triphenylphosphonium bromide 
• 82988-74-7 (2-chlorophenyl)diazomethane 
• 91110-67-7 1-chloro-2-(phenylsulfonylmethyl)benzene 
• 77421-13-7 (2-chlorobenzyl)sulfonyl chloride 
• 1486-28-8 diphenyl(methyl)phosphine 
• 611-17-6 1-bromomethyl-2-chlorobenzene 
• 18583-55-6 2-chlorobenzyl-triphenylphosphonium chloride 
• 1377975-11-5 2-chlorobenzylmethyldiphenylphosphonium bromide 
• 5293-77-6 1-chloro-2-(2'-chlorophenylethynyl)-benzene 

Downstream Products

• 25144-38-1 (E)-2,2'-dichlorostilbene 

Relevant articles and documents

Immobilization and continuous recycling of photoredox catalysts in ionic liquids for applications in batch reactions and flow systems: Catalytic alkene isomerization by using visible light

A catalytic (E)- to (Z)-isomerization of olefins using a photoredox catalyst under mild reaction conditions is presented. A variety of (Z)-alkenes can be prepared in the presence of visible light. A new reaction system allows an easy and efficient scale-up, as well as a continuous flow process in which the photocatalyst is immobilized in an ionic liquid and continuously recycled by simple phase separation. Catalytic (E)- to (Z)-isomerizations of olefins under mild conditions can be achieved by use of a photosensitizer and visible light. A new reaction system such as depicted allows an easy and efficient scale-up, as well as continuous flow processes in which the photocatalyst is immobilized in an ionic liquid and continuously recycled by phase separation.

Copper-catalyzed highly selective semihydrogenation of non-polar carbon-carbon multiple bonds using a silane and an alcohol

A copper catalyst bearing a suitable Xantphos derivative or NHC ligand was found to be highly efficient for the selective semihydrogenation of non-polar unsaturated compounds using a mixture of a silane and an alcohol as reducing agent. The catalytic system was useful for the selective semihydrogenation of internal alkynes to (Z)-alkenes with suppression of overreduction to the corresponding alkanes. Furthermore, semihydrogenations of terminal alkyne, 1,2-diene, 1,3-diene, 1,3-enyne and 1,3-diyne systems were also achieved selectively. Copyright

Convenient and stereoselective synthesis of symmetrical (E)-stilbenes via homocoupling of 1,3-dibenzylbenzotriazolium bromides

Using NaH as the base and DMSO as the solvent, a series of symmetric (E)-stilbenes were prepared in good yields via the -homocoupling of 1,3-dibenzylbenzotriazolium bromides at room temperature. Georg Thieme Verlag Stuttgart · New York.