Вид документа : Шифр издания : 54/S 98 Автор(ы) : Saloutina L. V., Zapevalov A. Ya., Kodess M. I., Slepukhin P. A., Saloutin V. I., Chupakhin O. N. Заглавие : Synthesis of fluorine containing N-heterocycles using oxides of terminal perfluoroolefins and urea Место публикации : Journal of Fluorine Chemistry. - 2012. - Vol.139. - С. 16-22 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): me2so --perfluoroolefins--urea Аннотация: The reaction of octafluoro-1,2-epoxybutane (1) with urea in Me2SO, aqueous Me2SO, aqueous dioxane, aqueous acetonitrile and of hexadecafluoro-1,2-epoxyoctane (2) with urea in aqueous Me2SO gave perfluoroalkylhydantoins – 5-hydroxy-5-pentafluoroethylimidazolidine-2,4-dione (4a) (yield 40–42%) and 5-hydroxy-5-tridecafluorohexylimidazolidine-2,4-dione (4b) (yield 54%), respectively. Use of dioxane and acetonitrile in the reaction of oxiranes 1, 2 with urea led to unexpected heterocyclic products – perfluoroalkyloxazoles 7a, b (yield 11–82%). Perfluoroalkyl containing allantoin – 5-tridecafluorohexyl-5-ureidoimidazolidine-2,4-dione (3b) (yield 19%) and polyfluoroalkyl containing urea–(2,2,3,3,4,4,5,5,6,6,7,7,7-tridecafluoro-1-hydroxyheptyl)urea (6b) (yield 46%) have been first obtained by the reaction of oxirane 2 with urea in Me2SO and aqueous Me2SO, respectively Доп.точки доступа: Saloutina, L. V.; Салоутина Людмила Васильевна; Zapevalov, A. Ya.; Запевалов Александр Яковлевич; Kodess, M. I.; Кодесс Михаил Исаакович; Slepukhin, P. A.; Saloutin, V. I.; Chupakhin, O. N.