CF<sub>3</sub> Oxonium Salts, <i>O</i>-(Trifluoromethyl)dibenzofuranium Salts: In Situ Synthesis, Properties, and Application as a Real CF<sub>3</sub><sup>+</sup> Species Reagent
作者:Teruo Umemoto、Kenji Adachi、Sumi Ishihara
DOI:10.1021/jo070896r
日期:2007.8.31
We report in situ synthesis of the first CF3 oxonium salts, thermally unstable O-(trifluoromethyl)dibenzofuranium salts, which furthermore have different counteranions (BF4-, PF6-, SbF6-, and Sb2F11-) and ring substituents (tert-butyl, F, and OCH3), by photochemical decomposition of the corresponding 2-(trifluoromethoxy)biphenylyl-2‘-diazonium salts at −90 to −100 °C. The yields markedly increased in
我们在第一CF的原位合成报告3氧鎓盐,热不稳定ø - (三氟甲基)dibenzofuranium盐,其还具有不同抗衡阴离子(BF 4 -,PF 6 - ,的SbF 6 - ,和Sb 2 ˚F 11 - )和环取代基(叔丁基,F和OCH 3),是通过在-90至-100°C下将相应的2-(三氟甲氧基)联苯基-2'-重氮鎓盐进行光化学分解而实现的。产率在BF的顺序显着增加4 -