Вид документа : Шифр издания : 54 Автор(ы) : Verbitskiy E. V., Slepukhin P. A., Ezhikova M. A., Kodess M. I., Shvachko Yu.N., Starichenko D.V., Rusinov G. L., Charushin V. N. Заглавие : σH-Adducts of 1-alkyl-1,4-diazinium salts as the sources of biradicals in the synthesis of tetraazaphenanthrenes Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 975-980 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): ph-adducts--biradicals--tetraazaphenanthrenes Аннотация: O- and C-Adducts of 5-(het)aryl-2,3-dicyano-1-ethylpyrazinium salts are latent sources of biradicals capable of forming tetraazaphenanthrene derivatives via dimerization. The mechanisms of the reactions were examined using ESR spectroscopy. The stereochemistry of the resulting heterocyclic systems was studied by NMR spectroscopy. The crystallographic data on their three-dimensional structures were obtained Доп.точки доступа: Verbitskiy, E. V.; Slepukhin, P. A.; Ezhikova, M. A.; Kodess, M. I.; Кодесс Михаил Исаакович; Shvachko, Yu.N.; Starichenko, D.V.; Rusinov, G. L.; Русинов Геннадий Леонидович; Charushin, V. N.