[K*18-crown-6][trans-CF3CF=CFCCBF3] | 869657-75-0

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 硼酸衍生物
• 英文名称: [K*18-crown-6][trans-CF3CF=CFCCBF3]
• CAS: 869657-75-0
• 化学式: C₅BF₈*C₁₂H₂₄KO₆
• 分子量: 526.27
• InChiKey: SSRNFMMZRIWMQS-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  potassium trifluoro(perfluoropent-3-en-1-yn-1-yl)borate 、 18-冠醚-6 以 二氯甲烷 为溶剂， 生成 [K*18-crown-6][trans-CF3CF=CFCCBF3]
  参考文献：
  名称：

  (Fluoroorgano)fluoroboranes and -borates. 14. Preparation of Potassium ((Perfluoroorgano)ethynyl)trifluoroborates K[R_FC⋮CBF₃]

  摘要：

  Despite the remarkable progress in organoboron chemistry, (alkynyl)fluoroborates remained unknown until 1999, when Darses et al. reported the preparation of the first two potassium (alkynyl)trifluoroborates, K[RC equivalent to CBF3] (R = Bu, Et3Si).(1) Later Molander et al. extended this series of salts with R = C8H17, C6H5, C6H5-CH(2)CH2, CClH2CH2CH2, CH2=C(CH3) Me3Si, and t-BuMe2SiOCH2CH2.(2) Both groups introduced (alkynyl)trifluoroborates successfully into Pd-catalyzed cross-coupling reactions and demonstrated impressively the application potential of alkynyltrifluoroborate salts.It is well-known that the replacement of all or the majority of hydrogen atoms by fluorine atoms in hydrocarbons or in their organoelement derivatives caused significant changes of their physical and chemical properties. 3 In this regard the chemistry of organoboron compounds is no exception. A recently published review presented a number of peculiarities which were derived from the combination of the specific properties of both roots, organofluorine and organoboron chemistry, and their co-action.(4)sWe have continued our systematic studies in the field of polyfluorinated organofluoroborates and -boranes investigated approaches to the synthesis of ((perfluoro-organo)ethynyl)trifluoroborate salts K[RFC equivalent to CBF3]. We have included perfluorinated alkyl, alkenyl, and aryl groups R-F attached to C-2 of the ethynyl unit.(5)

  DOI：

  10.1021/om050590f