82234-77-3

Basic information

• Product Name: Benzene, 1,1'-[(1-methyl-2-octenylidene)bis(sulfonyl)]bis-, (E)-
• CAS NO: 82234-77-3
• Molecular Formula: C21H26O4S2
• Molecular Weight: 406.567
• Mol File: 82234-77-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-[(1-methyl-2-octenylidene)bis(sulfonyl)]bis-, (E)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-[(1-methyl-2-octenylidene)bis(sulfonyl)]bis-, (E)-(82234-77-3)
• EPA Substance Registry System: Benzene, 1,1'-[(1-methyl-2-octenylidene)bis(sulfonyl)]bis-, (E)-(82234-77-3)

Safety Data

• Hazardous Substances Data: 82234-77-3(Hazardous Substances Data)

Upstream product

• 82234-71-7 C₂₀H₂₄O₄S₂ 
• 74-88-4 methyl iodide 

Downstream Products

• 6434-78-2 2-nonene 
• 20063-92-7 (E)-3-nonene 
• 107200-59-9 2-(phenylsulfonyl)-4-nonanol 
• 820-25-7 (2E)-2-nonen-4-ol 
• 82234-82-0 [((E)-Non-3-ene)-2-sulfonyl]-benzene 
• 88626-35-1 [((2E,4Z)-Nona-2,4-diene)-2-sulfonyl]-benzene 
• 88626-34-0 [((2E,4E)-Nona-2,4-diene)-2-sulfonyl]-benzene 
• 88626-36-2 [((3E,5E)-Nona-3,5-diene)-2-sulfonyl]-benzene 
• 6434-77-1 cis-2-nonene 

Relevant articles and documents

Syntheses a l'aide de sulfones. XVIII. Utilisation des disulfones-1,1 pour la synthese stereoselective de composes olefiniques

2-Alkenyl-1,1-disulfones 4 are readily available in excellent yields by condensation of aldehydes with bisaryl or bisalkylsulfonylmethanes in the presence of piperidine acetate and molecular sieves at room temperature.A small amount of the 1-alkenyl isomer is also found when the aldehyde is α-substituted but it can be converted into the 2-alkenyl isomer by base catalysed equilibration.The 2-alkenyl-1,1-disulfones display only E geometry whereas E allylic monosulfones are difficult to isolate in a state of stereochemical purity (about 20percent of the Z isomer at equilibrium (8)).Alkylation is readily performed: treatment of 4 and 6 by sodium hydride in dimethylformamide and then by methyl iodide gives disulfones 5 E and 7 in 78-95percent yields.The alkylation of 4 (R=Et) by butyl iodide gives 70percent of 5 E(R=Et, R'=n-Bu) resulting from alkylation at the α position and 8percent of 3 (R=Et, R'=n-Bu) resulting from alkylation at the γ position.The α isomer is readily purified by crystallization.Reduction of disulfones 4 or 5 by aluminium amalgam leads quantitatively to allylic sulfones 2E or 8E.Olefins 9E are obtained upon total reduction of disulfones 4 or 5 by lithium in ethylamine at -78 deg C but in the case of disulfones 5 the olefins 9E are contaminated by isomers 10E and 10Z.