Вид документа : Статья из журнала Шифр издания : 54/S 98 Автор(ы) : Fokin A. S., Burgart Ya. V., Saloutin V. I., Chupakhin O. N. Заглавие : Synthesis of fluorine-containing 2-(1-aryl-4-oxo-1,4-dihydrocinnolin-3-yl)-2-oxoacetic acids [Electronic resource] Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2005. - Vol. 41, № 9. - С. 1374-1376 Систем. требования: http://www.springerlink.com/content/7220j35k2t7qr690/fulltext.pdf Примечания : Библиогр. : с. 1376 (9 назв.). - 28.10.2011 г. ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Acid hydrolysis of ethyl 2-(1-aryl-5,6,7,8-tetrafluoro-4-oxo-1,4-dihydrocinnolin-3-yl)-2-oxoacetates gives 2-(1-aryl-5,6,7,8-tetrafluoro-4-oxo-1,4-dihydrocinnolin-3-yl)-2,2-dihydroxyacetic acids which undergo dehydration on heating in toluene to afford 2-(1-aryl-5,6,7,8-tetrafluoro-4-oxo-1,4-dihydrocinnolin-3-yl)-2-oxoacetic acids. Reactions of the latter with excess morpholine result in replacement of two fluorine atoms in positions 5 and 7 by the amine residues. Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Fokin, A. S.; Burgart, Ya. V.; Бургарт Янина Валерьевна; Saloutin, V. I.; Chupakhin, O. N. |