N 52 New reactions of fluorinated 2,4-dioxoesters with aromatic aldehydes [Electronic resource] / M. V. Pryadeina, O. G. Khudina, Ya. V. Burgart, V. I. Saloutin, O. N. Chupakhin // Mendeleev Communications. - 2006. - Vol. 16, № 3. - P188-189 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: 4-Polyfluoroalkyl 2,4-dioxobutanoates react with aromatic aldehydes to give 4-aryl-2,6-dihydroxy-2,6-di (fluoroalkyl)-3,5-diethoxalyltetrahydropyrans 3a,b, whereas the reaction of 4-pentafluorobenzoyl 2,4-dioxobutanoate with benzaldehyde gives 5,6,7,8-tetrafluoro-1-phenyl-1H-furo[3,4-b]chromene-3,9-dione 4. \\\\Expert2\\nbo\\Mendeleev Communications\\2006, v.16, p.188.pdf |