| Abstract: | N-(Benzylidene)- and N-(2-phenylamino-2-oxoethylidene)aniline N-oxides add stereospecifically to the double bond in 4-methylene- and 4-acryloylamino-4-methyltetrahydropyrans to give substituted isoxazolidines. The use of 4-methyl-5-arylamino- and 4-arylaminomethyl-5,6-dihydro-2H-pyrans for the synthesis of novel N-oxides has given tricyclic adducts resulting from intramolecular cyclization of the required compounds.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1113–1116, August, 1990. |
