Yoshihiro Ushigoe, Syuzo Satake, Araki Masuyama, Masatomo Nojima and Kevin J. McCullough
Ozonolysis of indenes in the presence of primary amines gives in each case the corresponding 1,2,4-dioxazolidines derived from the intramolecular cyclization of the products of trapping of the carbonyl oxide moieties by the amines.