In aromatic substitution of olefins, steric factor of o-alkyl substituents of styrene was investigated. The formation of arylated products was found to be decreased by introduction of alkyl groups to ortho position of styrene.
Beim Kochen der Styrole (I) in Benzol in Gegenwart von Pd‐acetat‐Essigsäure entstehen die Stilbene (II) und daneben geringe Mengen der Verbindungen (III).
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