Aqueous Heck Arylation of Acrolein Derivatives: The Role of Cyclodextrin as Additive

Walid Al-Maksoud,Mohamad Jahjah,Eric Monflier,Anne Ponchel,Bastien Léger,Catherine Pinel,Laurent Djakovitch

Topics in Catalysis（2014）

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摘要

Heck arylation of acrolein dialkyl acetal with (hetero)-aryl halides in water catalyzed by solid palladium catalysts and in presence of cyclodextrins is reported. Depending on the nature of the base, either cinnamaldehyde or 3-aryl propionic ester is obtained. It was shown that the presence of cyclodextrins in the reaction media increased the reaction rate as well as the stability of the palladium species.

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关键词

Heck reaction, Aqueous phase, Cyclodextrins, Heterogeneous palladium catalyst, Cinnamaldehyde, 3-Arylpropionic esters

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