3-(trifluoromethoxy)phenyllithium | 334778-35-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 3-(trifluoromethoxy)phenyllithium
• CAS: 334778-35-7
• 化学式: C₇H₄F₃LiO
• 分子量: 168.044
• InChiKey: ZODGSHIHYUEOLC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.0
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-(trifluoromethoxy)phenyllithium 以 四氢呋喃 、 联苯 、 正戊烷 为溶剂， 生成 2-(三氟甲氧基)苯基锂
  参考文献：
  名称：

  Relative Basicities of ortho-, meta-, and para-Substituted Aryllithiums

  摘要：

  The relative basicities of aryllithiums bearing methoxy, chlorine, fluorine, trifluoromethyl and trifluoromethoxy substituents at the ortho, meta, and para positions have been assessed. To this end, two aryllithiums of comparable basicity were equilibrated together with the corresponding bromo- or iodoarenes in a 1: 2 mixture of pentanes with tetrahydrofuran at -50, -75, or -100 degrees C. The "basicity" (protodelithiation) increments Delta Delta G derived from the equilibrium constants are linearly correlated with the relative protonation enthalpies of the corresponding aryl anions in the gas phase. However, the correlation factor proves to be position-dependent. Compared with "naked" aryl anions, the basicity of aryllithiums mirrors the effects of ortho, meta, and para substituents to the extent of 36%, 30%, and 25%, respectively.

  DOI：

  10.1021/jo8020083
• 作为产物：
  描述：

  4-(三氟甲氧基)苯基锂 以 四氢呋喃 、 联苯 、 正戊烷 为溶剂， 生成 3-(trifluoromethoxy)phenyllithium
  参考文献：
  名称：

  Relative Basicities of ortho-, meta-, and para-Substituted Aryllithiums

  摘要：

  The relative basicities of aryllithiums bearing methoxy, chlorine, fluorine, trifluoromethyl and trifluoromethoxy substituents at the ortho, meta, and para positions have been assessed. To this end, two aryllithiums of comparable basicity were equilibrated together with the corresponding bromo- or iodoarenes in a 1: 2 mixture of pentanes with tetrahydrofuran at -50, -75, or -100 degrees C. The "basicity" (protodelithiation) increments Delta Delta G derived from the equilibrium constants are linearly correlated with the relative protonation enthalpies of the corresponding aryl anions in the gas phase. However, the correlation factor proves to be position-dependent. Compared with "naked" aryl anions, the basicity of aryllithiums mirrors the effects of ortho, meta, and para substituents to the extent of 36%, 30%, and 25%, respectively.

  DOI：

  10.1021/jo8020083

文献信息

• Relative Basicities of <i>ortho</i>-, <i>meta</i>-, and <i>para</i>-Substituted Aryllithiums
  作者：Joanna Gorecka-Kobylinska、Manfred Schlosser

  DOI：10.1021/jo8020083

  日期：2009.1.2

  The relative basicities of aryllithiums bearing methoxy, chlorine, fluorine, trifluoromethyl and trifluoromethoxy substituents at the ortho, meta, and para positions have been assessed. To this end, two aryllithiums of comparable basicity were equilibrated together with the corresponding bromo- or iodoarenes in a 1: 2 mixture of pentanes with tetrahydrofuran at -50, -75, or -100 degrees C. The "basicity" (protodelithiation) increments Delta Delta G derived from the equilibrium constants are linearly correlated with the relative protonation enthalpies of the corresponding aryl anions in the gas phase. However, the correlation factor proves to be position-dependent. Compared with "naked" aryl anions, the basicity of aryllithiums mirrors the effects of ortho, meta, and para substituents to the extent of 36%, 30%, and 25%, respectively.