Consecutive palladium-catalyzed Hiyama-Heck reactions in aqueous media under ligand-free conditions |
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Authors: | Gordillo Alvaro de Jesús Ernesto López-Mardomingo Carmen |
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Institution: | Departamento de Química Orgánica, Universidad de Alcalá, 28871 Alcalá de Henares (Madrid), Spain. |
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Abstract: | Symmetric and asymmetric (E)-1,2-diarylethenes are synthesized from aryl bromides by consecutive one-pot Hiyama-Heck reactions carried out in water and under air; the only additives required are sodium hydroxide, palladium acetate and poly(ethylene glycol), and the products are isolable in many cases by simple filtration of the water solution. |
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