Вид документа : Статья из журнала Шифр издания : 54/S 98 Автор(ы) : Savel'eva E. A., Rozin Yu. A., Kodess M. I., Meervelt L. V., Dehaen W., Morzherin Yu. Yu., Bakulev V. A. Заглавие : Synthesis of mesoionic[1,2,3]triazolo[5,1-delta][1,2,5]triazepines Место публикации : Tetrahedron. - 2004. - Vol. 60, № 25. - С. 5367-5372: ил. Примечания : Библиогр.: с. 5371-5372 (9 ref.) ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Intramolecular cyclization of 1-amino-3-phenacyl-4-carbohydrazido-1,2,3-triazolium-5-olates has been shown to take place via selective interaction of the carbonyl group with the terminal amino function of the hydrazido group to form a 1,2,5-triazepine ring. Minor products, resulting from the interaction of the ?-nitrogen atom of the hydrazido group with the carbonyl function, having a N-amino-pyridazine structure were also detected and isolated. A general method for the synthesis of novel mesoionic 2-amino-7-aryl-4-oxo-2,4,5,8-tetrahydro[1,2,3]triazolo[5,1-d][1,2,5]triazepin-9-ium-3-olates was developed. Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Savel'eva, E. A.; Rozin, Yu. A.; Kodess, M. I.; Кодесс Михаил Исаакович; Meervelt, L. V.; Dehaen, W.; Morzherin, Yu. Yu.; Bakulev, V. A.