Вид документа : Статья из журнала Шифр издания : 54/R 30 Автор(ы) : Pryadeina M. V., Burgart Ya. V., Kodess M. I., Saloutin V. I., Chupakhin O. N. Заглавие : Reactions of alkyl 2-benzylidene-2-polyfluoroacylacetates with N,N-dinucleophiles [Electronic resource] Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 6. - С. 1261-1266 Систем. требования: http://www.springerlink.com/content/v033772h7671t5r2/fulltext.pdf Примечания : Библиогр. : с. 1266 (16 назв.). - 21.10.2011 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Alkyl 2-benzylidene-2-polyfluoroacylacetates react with urea and thiourea to yield 5-ethoxycarbonyl-4-fluoroalkyl-4-hydroxy-6-phenylhexahydropyrimidin-2-ones and -2-thiones and with guanidine sulfate to form 2-amino-5-ethoxycarbonyl-4-fluoroalkyl-6-phenyl-1,6-dihydropyrimidines and 3,6-diethoxycarbonyl-2,7-difluoroalkyl-4,5-diphenyl-4,5-dihydro-1H-pyrido[1,2-a]pyrimidines, and they react with phenylhydrazine to afford 4-alkoxycarbonyl-3-fluoroalkyl-3-hydroxy-1,5-diphenylpyrazolidines. Hydrazine hydrate catalyzes the formation of 3,5-diethoxycarbonyl-2,6-difluoroalkyl-2,6-dihydroxy-4-phenyltetrahydropyrans. When treated with anhydrous hydrazine and o-phenylenediamine, these esters cleave to form the products of condensation of fluoroacyl ester and benzaldehyde with diamines. Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Pryadeina, M. V.; Burgart, Ya. V.; Бургарт Янина Валерьевна; Kodess, M. I.; Кодесс Михаил Исаакович; Saloutin, V. I.; Chupakhin, O. N.