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US 5,475,142 AGranted
Process for preparing alkyl-(3-chlorophenyl)-sulphones
AssigneeBayer Aktiengesellschaft
InventorsStefan Antons, Helmut Fiege, Werner Bussmann, Hartmut Richter
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Abstract
Alkyl-(3-chlorophenyl)-sulphones are particularly advantageously obtained by chlorination of alkylphenylsulphones if alkylphenylsulphones are chlorinated in molten form with elemental chlorine in the presence of iron(III) chloride and optionally iodine and/or sulphur.
Claims14
A process for preparing an alkyl-(3-chlorophenyl)-sulphone comprising the chlorination of an alkylphenylsulphone in molten form with elemental chlorine in the presence of iron(III) chloride.
Dependencies are inferred from the claim text.