Вид документа : Статья из журнала Шифр издания : 54/F 98 Автор(ы) : Mamedov V.A., Zhukova N. A., Beschastnova T. N., Balandina A. A., Gubaidullin A. T., Kotovskaya S. K., Latypov Sh. K., Levin Ya.A., Charushin V. N. Заглавие : Fused polycyclic nitrogen-containing heterocycles. 21. Condensation of 4-hydroxy-3,5-diphenyl-2-phenyliminothiazolidine with 5-fluoro-4-morpholino- and 4-(4-methylpiperazino)-1,2-phenylenediamines [Electronic resource] Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2009. - Vol. 58, № 1. - С. 203-211 Систем. требования: http://www.springerlink.com/content/f424008625m16314/fulltext.pdf Примечания : 28.10.2011 г. ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The condensation of 4-hydroxy-3,5-diphenyl-2-phenyliminothiazolidine with 5-fluoro-4-morpholino- and 5-fluoro-4-(4-methylpiperazino)-1,2-phenylenediamines leads to region-isomeric thiazolo[3,4-a]quinoxalines differing in substituents in positions 7 and 8 of the benzene ring. From the ratio of isomers formed it follows that the mesomeric effect of a fluorine atom in 1,2-phenylenediamines is comparable with the influence of an aminosubstituent Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Mamedov, V.A.; Zhukova, N. A.; Beschastnova, T. N.; Balandina, A. A.; Gubaidullin, A. T.; Kotovskaya, S. K.; Latypov, Sh. K.; Levin, Ya.A.; Charushin, V. N.