o-(Ph2Sb)(Mes2B)C6H4 | 1328977-24-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: o-(Ph2Sb)(Mes2B)C6H4
• CAS: 1328977-24-7
• 化学式: C₃₆H₃₆BSb
• 分子量: 601.243
• InChiKey: SJFCRFOBPYGJSD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.57
• 重原子数：
  38.0
• 可旋转键数：
  6.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  o-(Ph2Sb)(Mes2B)C6H4 、 三氟甲烷磺酸甲酯 以 乙醚 为溶剂， 生成 [o-(Ph2MeSb)(Mes2B)C6H4]OTf
  参考文献：
  名称：

  Fluoride Anion Chelation by a Bidentate Stibonium–Borane Lewis Acid

  摘要：

  The stibonium-borane [o-(Ph2MeSb)(Mes(2)B)C6H4](+) (4(+)) has been synthesized and isolated as a triflate salt. Competition experiments carried out with [o-(Ph2MeP)(Mes(2)FB)C6H4] indicate that 4(+) exhibits a much higher fluoride affinity than its lighter phosphorus congener. Structural studies show that the higher fluoride affinity of 4(+) is correlated to the Lewis acidity of the stibonium center, which engages the boron-bound fluoride anion in the formation of a B-F -> Sb bridge. These results illustrate that the Lewis acidity of main-group onium ions increases as the group is descended.

  DOI：

  10.1021/om200499y
• 作为产物：
  描述：

  (C6H5)2SbC6H4-2-Br 、 二(三甲苯基)氟化硼 在 LiC(CH₃)3 作用下， 以 乙醚 为溶剂， 生成 o-(Ph2Sb)(Mes2B)C6H4
  参考文献：
  名称：

  Fluoride Anion Chelation by a Bidentate Stibonium–Borane Lewis Acid

  摘要：

  The stibonium-borane [o-(Ph2MeSb)(Mes(2)B)C6H4](+) (4(+)) has been synthesized and isolated as a triflate salt. Competition experiments carried out with [o-(Ph2MeP)(Mes(2)FB)C6H4] indicate that 4(+) exhibits a much higher fluoride affinity than its lighter phosphorus congener. Structural studies show that the higher fluoride affinity of 4(+) is correlated to the Lewis acidity of the stibonium center, which engages the boron-bound fluoride anion in the formation of a B-F -> Sb bridge. These results illustrate that the Lewis acidity of main-group onium ions increases as the group is descended.

  DOI：

  10.1021/om200499y