Аннотация:
The reactions of 1-amino-2-nitroguanidine with 3-nitro- acrylates afford aza-Michael adducts. The latter when refluxed in an aqueous alkaline medium undergo elimination of nitrous acid followed by shift of the resulting C=C bond into C=N position giving finally N-substituted alkylpyruvate hydrazones. These compounds can also be prepared in a one-pot procedure; NMR spectroscopy and X-ray diffraction analysis confirmed the existence of the obtained hydrazones as E-isomers.
Образец цитирования:
O. Yu. Ozerova, T. P. Efimova, T. A. Novikova, I. A. Litvinov, S. V. Makarenko, “Reactions of 1-amino-2-nitroguanidine with 3-nitroacrylates”, Mendeleev Commun., 34:2 (2024), 265–267