中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,3,4,5-四氟苯硼酸 | 2,3,4,5-tetrafluorophenyl(dihydroxy)borane | 179923-32-1 | C6H3BF4O2 | 193.893 |
An improved synthesis of arylxenon(II) salts is reported. The series of fluoro-containing arylxenon(II) tetrafluoroborates (aryl = C6F5, 2,3,4,5-C6HF4, 3,4,5-C6H2F3 and 3,5-C6H3F2) are prepared by the reaction of xenon difluoride with the corresponding aryldifluoroboranes. The salts [C6F5Xe] [BF4] and [2,3,4,5-C6HF4Xe] [BF4] are long-term stable in anhydrous HF (aHF) solution at rt, while [3,4,5-C6H2F3Xe] [BF4] and [3,5-C6H3F2Xe] [BF4] are converted into 1,2,3,5-tetrafluorobenzene and 1,3,5-trifluorobenzene, respectively, within a few hours.