... Intramolecular cycloadditions of oxazoline N-oxides. 1992, Tetrahedron Letters more. Kobayakawa M. , Langlois Y. Intramolecular cycloadditions of oxazoline N-oxides. Tetrahedron Letters, Volume 33, 17 April 1992, Pages 2353-2356. View more articles. Close overlay. Close ...