Вид документа : Статья из журнала Шифр издания : 54/S 98 Автор(ы) : Filyakova V. I., Kodess M. I., Zapevalov A. Ya., Saloutin V. I. Заглавие : Synthesis of perfluoro- and 2-trifluoromethylpentafluoro-dihydrofurans and their epoxy derivatives [Electronic resource] Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2003. - Vol. 39, № 7. - С. 1010-1015 Систем. требования: http://www.springerlink.com/content/tk65261645q64317/fulltext.pdf Примечания : Bibliogr. : p. 1015 (11 ref.). - 31.10.2011 г. ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Perfluorotetrahydrofuran-2-carboxylic acid was converted through a series of transformations into perfluoro-2,3-dihydrofuran and perfluoro-2,5- dihydrofuran; likewise, from (2-perfluorotetrahydrofuryl)difluoroacetic acid 2-trifluoromethylpentafluoro-2,3-dihydrofuran was obtained. Perfluoro-2,3- dihydrofuran and 2-trifluoromethylpentafluoro-2,3-dihydrofuran underwent isomerization into perfluoro-2,5-dihydrofuran and 2-trifluoromethylpentafluoro- 2,5-dihydrofuran by the action of cesium fluoride. Treatment of perfluoro-2,5-dihydrofuran with SbF5 resulted in ring opening and formation of cis-perfluoro-2-butenoyl fluoride, while 2- trifluoromethylpentafluoro-2,3-dihydrofuran was converted into 2-trifluoromethylpentafluoro-2,5-dihydrofuran under the same conditions. Perfluoro-3,4-epoxytetrahydrofuran and 2-trifluoromethyl-3,4-epoxypenta- fluorotetrahydrofuran containing fused oxirane and tetrahydrofuran rings were synthesized by reactions of perfluoro-2,5-dihydrofuran and 2- trifluoromethylpentafluoro-2,5-dihydrofuran, respectively, with sodium hypochlorite. Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Filyakova, V. I.; Филякова Вера Ивановна; Kodess, M. I.; Кодесс Михаил Исаакович; Zapevalov, A. Ya.; Запевалов Александр Яковлевич; Saloutin, V. I.