- Araliphatic sulfonium and their use
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Sulfonium salts of the formulae I to IV STR1 in which A is C1 -C12 alkyl, C3 -C8 cycloalkyl, C4 -C10 cycloalkylalkyl, phenyl which is unsubstituted or mono- or polysubstituted by C1 -C8 alkyl, C1 -C4 alkoxy, halogen, nitro, phenyl, phenoxy, alkoxycarbonyl having 1-4 C atoms in the alkoxy radical or acyl having 1-12 C atoms, Ar, Ar1 and Ar2, independently of one another, are each unsubstituted or mono- or polysubstituted phenyl, or naphthyl which is unsubstituted or mono- or polysubstituted each arylene is an unsubstituted or mono- or polysubstituted phenylene or unsubstituted or mono- or polysubstituted naphthylene and Q? is SbF6-, AsF6- or SbF5 OH- are valuable curing agents and curing accelerators in the heat-curing of cationically polymerizable compounds, preferably epoxy resins.
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- Desulfurization of benzylic mercaptans by triiron dodecacarbonyl under acidic and biphasic conditions
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The biphasic reaction of benzylic mercaptans with triiron dodecacarbonyl, 48-50% tetrafluoroboric acid, and benzene affords desulfurized products in good to excellent yields. This reaction is superior to that effected in the presence of sodium dodecylbenzenesulfonate, a phase transfer agent for acidic processes.
- Alper, Howard,Sibtain, Fazle
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p. 225 - 229
(2007/10/02)
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- PHASE TRANSFER CATALYZED DESULFURIZATION REACTIONS
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Mercaptans react with triiron dodecarbonyl or dicobalt octacarbonyl, under phase transfer catalysis conditions, to give hydrocarbons in good yields.
- Alper, Howard,Sibtain, Fazle,Heveling, Josef
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p. 5329 - 5332
(2007/10/02)
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