Reactions of 4-phenylbut-3-yn-2-one (1a) and phenylpropynal (1b) with trimethyl(perfluoroalkyl)silanes (Me3SiRf) (Rf = CF3, C2F5, n-C6F13, n-C7F15, n-C8F17) in the presence of catalytic amounts of cesium fluoride (CsF) have been studied. Compounds 1a, 1b were reacted with 0.5 equivalent excess of Me3SiRf in ethylene glycol dimethyl ether (monoglyme) at 25 °C for Rf = CF3, C2F5 and at 50 °C for Rf = n-C6F13, n-C7F15, n-C8F17 to give the corresponding perfluoroalkylated alcohols in good yields after acid hydrolysis. The new compounds were characterized by IR, NMR (1H, 19F, 13C), MS and elemental analysis. In these reactions, tetrabutylammonium fluoride (TBAF) is also effective as the fluoride catalyst. The alcohols with CF3 or C2F5 are viscous liquids whereas those with n-C6F13, n-C7F15 or n-C8F17 are solids. They are soluble in common organic solvents and stable to air and moisture.
4-苯基丁-3-炔-2-酮(1a)和苯基丙炔醛(1b)与三甲基(过氟烷基)硅烷(Me3SiRf)(Rf = CF3, C2F5, n-C6F13, n-C7F15, n-C8F17)在氟化铯(CsF)催化下的反应进行了研究。化合物1a和1b在乙二醇二甲醚(单甲氧基)中,以0.5当量的过量Me3SiRf在25°C下反应(Rf = CF3, C2F5),在50°C下反应(Rf = n-C6F13, n-C7F15, n-C8F17),经过酸水解后,以良好产率得到相应的过氟烷基化醇。新化合物通过红外光谱、核磁共振(1H, 19F, 13C)、质谱和元素分析进行了表征。在这些反应中,四丁基氟化铵(TBAF)作为氟化催化剂也是有效的。含CF3或C2F5的醇是粘稠液体,而含n-C6F13, n-C7F15或n-C8F17的醇是固体。它们可溶于常见有机溶剂,对空气和水分稳定。