potassium 4-trimethylacetoxybutyl trifluoroborate

• 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: potassium 4-trimethylacetoxybutyl trifluoroborate
• 英文别名: potassium ((4-pivaloyloxy)butyl)trifluoroborate；Potassium;4-(2,2-dimethylpropanoyloxy)butyl-trifluoroboranuide
• 化学式: C₉H₁₇BF₃O₂*K
• 分子量: 264.137
• InChiKey: WIGJGZARBMFZFL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.21
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  potassium 4-trimethylacetoxybutyl trifluoroborate 、 4-氯苯甲醚 在 palladium diacetate 、 potassium carbonate 、 2-二环己基磷-2',6'-二异丙氧基-1,1'-联苯 作用下， 以 水 、 甲苯 为溶剂， 反应 36.0h， 以82%的产率得到4-(4-methoxyphenyl)butyl pivalate
  参考文献：
  名称：

  Suzuki−Miyaura Cross-Coupling Reactions of Primary Alkyltrifluoroborates with Aryl Chlorides

  摘要：

  Parallel microscale experimentation was used to develop general conditions for the Suzuki-Miyaura cross-coupling of diversely functionalized primary alkyltrifluoroborates with a variety of aryl chlorides. These conditions were found to be amenable to coupling with aryl bromides, iodides, and triflates as well. The conditions that were previously identified through similar techniques to promote the cross-coupling of secondary alkyltrifluoroborates with aryl chlorides were not optimal for the primary alkyltrifluoroborates, thus demonstrating the value of parallel experimentation to develop novel, substrate specific results.

  DOI：

  10.1021/jo900152n
• 作为产物：
  描述：

  3-butenyl pivalate 在 potassium hydrogen difluoride 、 dibromoborane-methyl sulfide 作用下， 以 乙醚 、 二氯甲烷 、 水 为溶剂， 反应 20.5h， 生成 potassium 4-trimethylacetoxybutyl trifluoroborate
  参考文献：
  名称：

  铃木-宫浦相继与烯基和烷基三氟硼酸酯的一键合成一元合成三取代共轭二烯

  摘要：

  描述了在存在Pd（PPh 3）4的情况下先后使用多种烯基三氟硼酸酯和随后的烷基三氟硼酸酯对1,1-二溴烯烃进行的顺序立体选择性解构。该合成方法在温和的反应条件下在一锅中顺利进行，从而以优异的产率提供相应的三取代的共轭二烯。而且，该方法在操作上非常简单，因为有机三氟硼酸盐在空气中稳定，并且副产物是无害的无机盐。

  DOI：

  10.1021/jo052636k

文献信息

• Iridium-Catalyzed sp³ C–H Borylation in Hydrocarbon Solvent Enabled by 2,2′-Dipyridylarylmethane Ligands
  作者：Margaret R. Jones、Caleb D. Fast、Nathan D. Schley

  DOI：10.1021/jacs.0c00524

  日期：2020.4.8

  Iridium-catalyzed alkane C-H borylation has long suffered from poor atom economy, resulting both from inclusion of only a single boron equivalent from the diboron reagent and a requirement for neat substrate. Appropriately-substituted dipyridylarylmethane ligands are found to give highly active alkane borylation catalysts which facilitate C-H borylation with improved conversion efficiency. This system provides for

  铱催化的烷烃 CH 硼酸化长期以来一直受到原子经济性差的影响，这既是由于只包含来自二硼试剂的单一硼等价物，又是对纯底物的要求。发现适当取代的二吡啶基芳基甲烷配体提供高活性烷烃硼化催化剂，其促进 CH 硼化并提高转化效率。该系统提供完全消耗二硼试剂，在低催化剂负载下产生两摩尔当量的产物。该系统的卓越功效还能够在烃溶剂中对未活化的烷烃进行硼化反应，从而减少过量底物并改善官能团兼容性。该配体的有效性通过一系列官能团显示出来，在纯底物的传统硼酸化条件下和在环己烷溶剂中的非典型条件下。这种催化系统的效用通过含有极性官能团的底物的硼化反应来举例说明，这些底物在纯条件下对 CH 硼酸化反应不起反应。
• Suzuki−Miyaura Cross-Coupling Reactions of Primary Alkyltrifluoroborates with Aryl Chlorides
  作者：Spencer D. Dreher、Siang-Ee Lim、Deidre L. Sandrock、Gary A. Molander

  DOI：10.1021/jo900152n

  日期：2009.5.15

  Parallel microscale experimentation was used to develop general conditions for the Suzuki-Miyaura cross-coupling of diversely functionalized primary alkyltrifluoroborates with a variety of aryl chlorides. These conditions were found to be amenable to coupling with aryl bromides, iodides, and triflates as well. The conditions that were previously identified through similar techniques to promote the cross-coupling of secondary alkyltrifluoroborates with aryl chlorides were not optimal for the primary alkyltrifluoroborates, thus demonstrating the value of parallel experimentation to develop novel, substrate specific results.
• One-Pot Synthesis of Trisubstituted Conjugated Dienes via Sequential Suzuki−Miyaura Cross-Coupling with Alkenyl- and Alkyltrifluoroborates
  作者：Gary A. Molander、Yasuo Yokoyama

  DOI：10.1021/jo052636k

  日期：2006.3.1

  Pd(PPh3)4 is described. This synthetic method proceeds smoothly in one pot under mild reaction conditions to provide the corresponding trisubstituted, conjugated dienes in excellent yield. Moreover, the method is operationally very simple because the organotrifluoroborates are stable in air, and the byproducts are innocuous inorganic salts.

  描述了在存在Pd（PPh 3）4的情况下先后使用多种烯基三氟硼酸酯和随后的烷基三氟硼酸酯对1,1-二溴烯烃进行的顺序立体选择性解构。该合成方法在温和的反应条件下在一锅中顺利进行，从而以优异的产率提供相应的三取代的共轭二烯。而且，该方法在操作上非常简单，因为有机三氟硼酸盐在空气中稳定，并且副产物是无害的无机盐。