Oximes possessing γ-, δ-, or ω-alkenyl substituents are cyclised by N-bromosuccinimide or iodine to the corresponding cyclic nitrones or their dimeric H-bonded hydriodide salts in good yield; facially specific cycloaddition of these nitrones, and others derived by cyclisation of a δ,δ-bis(alkenyl) ketoxime or addition of acetaldoxime to cyclohexene, furnish isoxazolidines.
R. Grigg, M. Hadjisoteriou, P. Kennewell, J. Markandu and M. Thornton-Pett, J. Chem. Soc., Chem. Commun., 1993, 1340 DOI: 10.1039/C39930001340
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