Вид документа : Статья из журнала Шифр издания : 54/H 19 Автор(ы) : Sevenard D. V., Kazakova O., Chizhov D. L., Yachevskii D. S., Lork E., Poveleit J., Charushin V. N., Roeschenthaler G.-V. Заглавие : Halogenation of fluorinated 1,3,5-triketones Место публикации : Helvetica Chimica Acta. - 2007. - Vol. 90, № 2. - С. 369-384 Примечания : Библиогр. : с. 384 (17 назв.) ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The behavior of linear and cyclic fluorinated 1,3,5-triketones and their metal derivatives towards common halogenating agents was examined, and optimal reaction conditions for the straightforward synthesis of mono-, di-, and tetrahalogenated products were found (Schemes 1-3). An aromatization through a double HBr elimination from an ,-dibrominated cyclohexanone was shown to be a promising synthetic route to 1,1-(2-hydroxy-1,3-phenylene)bis[2,2,2-trifluoroethanones] (= 2,6-bis(trifluoroacetyl)phenols; Scheme 4). Additionally, the 1,3,5-triketones prepared add readily H2O or alcohols to produce novel bridged 2,6-dihydroxypyran-4-ones (Scheme 2). The structure of the obtained compounds 6a and 7a was confirmed by X-ray structure analysis. Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Sevenard, D. V.; Севенард Дмитрий Викторович; Kazakova, O.; Chizhov, D. L.; Чижов Дмитрий Леонидович; Yachevskii, D. S.; Lork, E.; Poveleit, J.; Charushin, V. N.; Roeschenthaler, G.-V.