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Reference type: Journal
Authors: Tsvelikhovsky D, Pessing D, Avnir D, Blum J
Article Title: Forcing a cis-Product by Matrix Imprinting: Heck Reaction Catalyzed by Palladium Acetate Entrapped within cis-Imprinted Sol-Gel Derived Silicates.
Publication date: 2008
Journal: Advanced Synthesis & Catalysis
Volume: 350
Issue: (18)
Page numbers: 2856-2858.
DOI: 10.1002/adsc.200800590

Abstract: While the Heck coupling of aryl bromides with styrenes by palladium acetate entrapped within octylated silica sol-gel forms almost entirely trans-stilbenes, the catalysis by the palladium compound within the cis-pre-imprinted support gives stilbenes that are substantially enriched by cis-oriented isomers. Although the ceramic support is completely freed from the imprint prior to the coupling process, cis-stilbenes are formed with similar selectivities upon recycling of the catalyst systems for at least four consecutive runs
Template and target information: cis-stilbenes
Author keywords: C-C coupling reactions, heterogeneous catalysis, imprinting, sol-gel process, stereoselectivity


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