20408-25-7

Basic information

• Product Name: Benzene, [(2-bromoethenyl)sulfonyl]-, (E)-
• CAS NO: 20408-25-7
• Molecular Formula: C8H7BrO2S
• Molecular Weight: 247.112
• Mol File: 20408-25-7.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Benzene, [(2-bromoethenyl)sulfonyl]-, (E)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, [(2-bromoethenyl)sulfonyl]-, (E)-(20408-25-7)
• EPA Substance Registry System: Benzene, [(2-bromoethenyl)sulfonyl]-, (E)-(20408-25-7)

Safety Data

• Hazardous Substances Data: 20408-25-7(Hazardous Substances Data)

Upstream product

• 17101-82-5 E-β-bromovinyl phenyl sulfide 
• 35088-66-5 2-bromoethyl phenyl sulfide 
• 86143-88-6 β,β-dibromovinyl phenyl sulfone 
• 52244-26-5 cis-β-Bromovinyl phenyl sulfone 
• 160661-43-8 1,2-dibromo-1-phenylsulfanyl-ethane 
• 1822-73-7 phenylthioethylene 
• 17101-71-2 Z-β-bromovinyl phenyl sulfide 

Downstream Products

• 17101-80-3 1,2,2-Tribrom-1-phenyl-sulfonylethan 
• 33823-34-6 trans-β-Fluorvinylphenylsulfon 
• 121954-76-5 (2,2-Difluoro-ethanesulfonyl)-benzene 
• 74858-07-4 (E)-1-dimethylamino-2-phenylsulfonylethylene 
• 74858-06-3 1,2-bisethylene 
• 75007-20-4 C₁₄H₂₅N₃O₂PS⁽¹⁺⁾*Br^(1-) 
• 68969-27-7 (E)-1-(phenylsulfonyl)-3,3-dimethylbut-1-ene 
• 108344-86-1 (Z)-1-(phenylsulfonyl)-3,3-dimethylbut-1-ene 
• 71487-61-1 Methyl 2-methyl-4-(phenylsulfonyl)-2(E)-butenoate 
• 190730-66-6 (2S,5S,6S)-5-((E)-2-Benzenesulfonyl-vinyl)-6-[(R)-3-bromo-2-(tert-butyl-dimethyl-silanyloxy)-but-3-enyl]-2-tert-butyl-5-methyl-[1,3]dioxan-4-one 
• 963-16-6 (E)-1,2-bis(phenylsulfonyl)ethylene 
• 67875-74-5 C₂₀H₃₇N₃O₂PS⁽¹⁺⁾*Br^(1-) 
• 67948-56-5 ((Z)-2-Benzenesulfonyl-vinyl)-diethyl-amine 

Relevant articles and documents

Stereocontrolled Formation of Quaternary Carbon Centers by Conjugate Addition of Lithium Enolates of Dioxanones to β-Bromoacrylates and β-Bromovinyl Sulfones: Dependence of Stereoselectivity on Alkene Geometry

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Reactions of Alkylmercurials with Heteroatom-Centered Acceptor Radicals

The relative reactivities of alkylmercury halides toward PhS., PhSe., or I. decrease drastically from R = tert-butyl to R = sec-alkyl to R = n-butyl, indicative that R. is formed in the rate-determining step in the attack of these radicals upon RHgCl.The alkyl radicals thus formed will enter into chain reactions in which a heteroatom-centered radical (A.) is regenerated from substrates such as RS-SR, ArSe-SeAr, ArTe-TeAr, PhSe-SO2Ar, Cl-SO2Ph; ZCH=CHA (A = Cl, I, SPh, SO2Ph); or PhCCHA (A = I, SPh, SO2Ph). β-Styrenyl (PhCH=CHA, Ph2C=CHA) and β-phenethynyl (PhCCA) systems with A = I, Br, SO2Ph also enter into chain reactions with mercury(II) salts with the ligands PhS, PhSe, PhSO2, or (EtO)2PO.The relative reactivities of a series of reagents toward t-Bu. and of PhCH=CHA, Ph2C=CHA, and PhCCA toward c-C6H11. are reported as well as the regioselectivity of t-Bu. attack observed for 1,2-disubstituted ethylenes (ZCH=CHA) with Z and A from the group Ph, Cl, Br, I, SO2Ph, SPh, Bu3Sn.Reactions of (E)- and (Z)-PhCH=CHI or MeO2CCH=CHI with t-Bu. or c-C6H11. occurred in a regioselective and stereospecific (retention) manner.Reactions of (E)- and (Z)-ClCH=CHCl occurred in a nonstereospecific manner in which the E/Z product ratio increased with the bulk of the attacking radical.A similar effect on the E/Z product ratios was observed for (Z)-MeO2CCH=CHCl.