Вид документа : Статья из журнала Шифр издания : 54/A 53 Автор(ы) : Bakharev V. V., Parfenov V. E., Ul’yankina I. V., Zavodskskaya A. V., Gidaspov A. A., Slepukhin P. A. Заглавие : An unexpected direction of the reaction of hydrazino-1,3,5-triazines with formic acid. Synthesis of (4H-1,2,4-triazol-3-yl)guanidines [Электронный ресурс] Место публикации : Chemistry of Heterocyclic Compounds. - 2015. - Vol. 51, № 11/12 Систем. требования: http://link.springer.com/article/10.1007/s10593-016-1805-y Примечания : Bibliogr. : p. 1018 (10 ref.). - 03.02.2016 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): nitrogen heterocycles --1,2,4-triazolylguanidines--dimroth rearrangement Аннотация: A new direction of the reaction of 6-amino-substituted 4-hydrazino-1,3,5-triazin-2(1H)-ones with formic acid was found leading to the formation of N-substituted (4H-1,2,4-triazol-3-yl)guanidines together with the expected 5-amino-substituted 1,2,4-triazolo[1,5-a][1,3,5]-triazin-7-ones as a result of opening of the triazine ring and subsequent decarboxylation of an intermediate of the Dimroth rearrangement. The discovered reaction is of interest as a novel method for the synthesis of N-substituted (4H-1,2,4-triazol-3-yl)guanidines. Доп.точки доступа: Bakharev, V. V.; Parfenov, V. E.; Ul’yankina, I. V.; Zavodskskaya, A. V.; Gidaspov, A. A.; Slepukhin, P. A.