Вид документа : Статья из журнала Шифр издания : 54/M 38 Автор(ы) : Kagramanov N.D., Kutin A.A., Peschanskii N.V., Zapevalov A. Ya., German L.S. Заглавие : Mass spectrometry study of the pyrolysis of perfluoroolefin oxides [Electronic resource] Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1991. - Vol. 40, № 7. - С. 1321-1325 Систем. требования: http://www.springerlink.com/content/j22754g56153p9m3/fulltext.pdf Примечания : 26.10.2011 г. ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The pyrolysis of perfluoroolefin oxides has been studied by gas chromatography/mass spectrometry at 400–700°C, in a current of He (110 dilution, contact time 1 sec). For oxides containing a terminal CF2 group, the sole degradation route is through the elimination of difluorocarbene. Pyrolysis of symmetrical disubstituted oxides results in the elimination of a perfluoroalkylfluorocarbene, which subsequently isomerizes to the corresponding perfluoroolefin. In the pyrolysis of unsymmetric disubstituted oxides the elimination of perfluoroalkylfluorocarbenes occurs by both of the possible routes. Trisubstituted oxides eliminate bis-perfluoroalkylcarbenes. The decomposition of tetrasubstituted oxides proceeds along several directions concurrently Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Kagramanov, N.D.; Kutin, A.A.; Peschanskii, N.V.; Zapevalov, A. Ya.; Запевалов Александр Яковлевич; German, L.S.