4,5-Dihydroisoxazole-5-spirocycopropanes (3), prepared by cycloaddition of niltrile oxided (1) to methylenecyclopropane (2), undergo thermolysis affording aminodivinylketone (5) and 5,6-dihydro-4-pyridon (6) derivatives.
A. Guama, A. Brandi, A. Goti and F. De Sarlo, J. Chem. Soc., Chem. Commun., 1985, 1518 DOI: 10.1039/C39850001518
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