Organometallic reactions in aqueous media: indium-promoted additions to 2-pyridyl and glyoxylic acid oxime ethers |
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| Authors: | Bernardi Luca Cerè Vanda Femoni Cristina Pollicino Salvatore Ricci Alfredo |
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| Institution: | Dipartimento di Chimica Organica A. Mangini, Facoltà di Chimica Industriale, Università di Bologna, viale Risorgimento 4, 40136 Bologna, Italy. |
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| Abstract: | Oxime ethers derived from 2-pyridinecarboxaldehyde and glyoxylic acid can be effectively allylated in water with five differently functionalized allylic bromides promoted by indium. When the metal is positioned in close proximity of flanking heteroatomic centers, chelation by In is indeed operative and affects both reactivity and stereochemistry. Stereochemical assignments in the addition products were based on X-ray crystallographic measurements and spectral correlations. |
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