Arylimidoyl radicals, generated by hydrogen abstraction from N-arylideneanilines with di-isopropyl peroxydicarbonate, react with alkynes to give quinolines in good yields. The reaction also involves an intermediate Spirocyclohexadienyl radical; the proposed mechanism is discussed.
R. Leardini, D. Nanni, G. F. Pedulli, A. Tundo and G. Zanardi, J. Chem. Soc., Perkin Trans. 1, 1986, 1591 DOI: 10.1039/P19860001591
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