Method for side-chain alkylation or alkenylation
AssigneeBASF SE
InventorsUlrich Steinbrenner, Ralf Böhling, Peter Zehner
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Abstract
In a process for reducing the formation of polymers during side-chain alkylation or side-chain alkenylation of alkylaromatic compounds by reaction with olefins or diolefins in the presence of an alkali metal catalyst followed by distillation in order to isolate the alkylated or alkenylated compound, the alkali metal is present in the catalyst on an inorganic support, and the catalyst is mechanically separated from the reaction mixture after the reaction and before the distillation.
Claims10
A process for reducing the formation of polymers during side-chain alkylation or side-chain alkenylation of alkylaromatic compounds by reaction with olefins or diolefins in the presence of an alkali metal catalyst wherein the alkali metal is present in the catalyst on an inorganic support, and the catalyst is mechanically separated from the reaction mixture after the reaction, followed by protolyzation of the reaction mixture thus obtained, followed by distillation in order to isolate the alkylated or alkenylated compound.
Dependencies are inferred from the claim text.