2-氟苯酚阴离子 | 32376-32-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2-氟苯酚阴离子
• 英文名称: o-fluorophenolate
• 英文别名: 2-fluorophenolate anion；2-fluorophenoxide ion；2-fluorophenolate；2-fluoro-phenol; deprotonated form
• CAS: 32376-32-2
• 化学式: C₆H₄FO
• 分子量: 111.096
• InChiKey: HFHFGHLXUCOHLN-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  23.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-氟苯酚阴离子 、 氯乙酸 生成 (2-氟苯氧基)乙酸
  参考文献：
  名称：

  Skeletal rearrangements preceding CO loss from metastable phenoxymethylene ions derived from phenoxyacetic acid and anisole

  摘要：

  AbstractThe loss of CH2˙ from the molecular ion of phenoxyacetic acid and the expulsion of an H˙ atom from ionized anisole lead to phenoxymethylen ions, which fragment predominantly by CO loss on the microsecond time‐scale. Carbon‐13 labelling reveals that ∼90% of the CO molecules expelled from the metastable ions derived from phenoxyacetic acid incorporate the carbon atom from the 1‐position of the phenyl group of the parent compound, whereas the residual CO molecules contain one of the other carbon atoms of the aromatic ring. The 2‐fluoro‐ and 2‐methylphenoxymethylene ions derived from the appropriate aryloxyacetic acids behave similarly, i.e. the carbon atom of the methylene group of the parent compound is not incorporated in the expelled CO molecules. In contrast, ∼45% of the CO molecules eliminated from the metastable phenoxymethylene ions formed from ionized anisole contain the carbon atom of the methyl group, while the remaining part contains the carbon atom from the 1‐position of the phenyl ring of the parent compound. This result is taken as evidence for the occurrence of a skeletal rearrangement of the anisole molecular ion leading to an interchange between the carbon atom of the methyl group and the carbon atom at the 1‐position of the ring. The elimination of CO from the metastable ions generated from either phenoxyacetic acid or anisole gives rise to a composite metastable peak. Conclusive evidence as to the formation of [C7H7O]+ isomers other than the phenoxymethylene ion is not obtained, indicating that the composite metastable peak is a result of two competing reactions both leading to CO loss. Possible mechanisms of these reactions are discussed together with the mechanism of the skeletal rearrangement of the molecular ion of anisole prior to H˙ loss.

  DOI：

  10.1002/oms.1210281031

文献信息

• Single transition state in the transfer of a neutral phosphoryl group between phenoxide ion nucleophiles in aqueous solution
  作者：Salem A. Ba-Saif、Mark A. Waring、Andrew Williams

  DOI：10.1021/ja00178a040

  日期：1990.10

  reaction of 4-nitrophenolate ion with the 4-nitrophenyl ester is slightly imbalanced whereby bond formation does not keep up with bond fission in the transition states; the transition state, therefore, has some phosphorylium ion character. Transfer of the diethylphosphoryl group between weakly basic oxyanion nucleophiles is probably a concerted process with a transition state with more of the character

  取代酚盐离子与磷酸 4-硝基苯基二苯酯反应的二级速率常数 (k ArO ) 服从 18 个取代基范围内的线性方程。线性图与涉及单个过渡态或两步过程的机制一致，中间体具有非常活泼的中间体，其形成和分解的过渡态几乎相同；指数 (0.53) 的值也与具有离散中间体的常规逐步过程不一致。4-硝基苯酚离子与 4-硝基苯酯的对称反应略微不平衡，因此键的形成跟不上过渡态的键裂变；因此，过渡态具有一些磷离子特征。
• Structure-reactivity correlations for reactions of substituted phenolate anions with acetate and formate esters
  作者：Dimitrios Stefanidis、Sayeon Cho、Sirano Dhe-Paganon、William P. Jencks

  DOI：10.1021/ja00058a006

  日期：1993.3

  substituted phenolate anions with m-nitrophenyl, p-nitrophenyl, and 3,4-dinitrophenyl formates follow nonlinear BrOnsted-type correlations that might be taken as evidence for a change in the rate-limiting step of a reaction that proceeds through a tetrahedral addition intermediate. However, the correlation actually represents two different BrOnsted lines that are defined by meta- and para-substituted phenolate

  取代苯酚阴离子与间硝基苯基、对硝基苯基和 3,4-二硝基苯基甲酸酯的反应遵循非线性 BrOnsted 型相关性，可以作为反应的限速步骤发生变化的证据。四面体加成中间体。然而，相关性实际上代表了两个不同的布朗斯特线，它们由间位和对位取代的苯酚阴离子以及间位和对位取代的邻氯苯酚阴离子定义。在 ΔpK=0 时，在每一类 BrOnsted 相关性中攻击和离开酚酸阴离子的 BrOnsted 斜率没有可检测的变化，这支持了乙酰基和甲酰基转移反应的协调机制
• Ainscough, Eric W.; Bingham, Alistair G.; Brodie, Andrew M., Journal of Chemical Research - Part S
  作者：Ainscough, Eric W.、Bingham, Alistair G.、Brodie, Andrew M.、Englebretsen, Darren R.、Husbands, June M.

  DOI：——

  日期：——
• Concerted acetyl-group transfer between substituted phenolate ion nucleophiles: variation of transition-state structure as a function of substituent
  作者：Salem Ba-Saif、Ajay K. Luthra、Andrew Williams

  DOI：10.1021/ja00189a045

  日期：1989.3
• Skeletal rearrangements preceding CO loss from metastable phenoxymethylene ions derived from phenoxyacetic acid and anisole
  作者：Tineke A. Molenaar-Langeveld、Steen Ingemann、Nico M. M. Nibeering

  DOI：10.1002/oms.1210281031

  日期：1993.10

  AbstractThe loss of CH2˙ from the molecular ion of phenoxyacetic acid and the expulsion of an H˙ atom from ionized anisole lead to phenoxymethylen ions, which fragment predominantly by CO loss on the microsecond time‐scale. Carbon‐13 labelling reveals that ∼90% of the CO molecules expelled from the metastable ions derived from phenoxyacetic acid incorporate the carbon atom from the 1‐position of the phenyl group of the parent compound, whereas the residual CO molecules contain one of the other carbon atoms of the aromatic ring. The 2‐fluoro‐ and 2‐methylphenoxymethylene ions derived from the appropriate aryloxyacetic acids behave similarly, i.e. the carbon atom of the methylene group of the parent compound is not incorporated in the expelled CO molecules. In contrast, ∼45% of the CO molecules eliminated from the metastable phenoxymethylene ions formed from ionized anisole contain the carbon atom of the methyl group, while the remaining part contains the carbon atom from the 1‐position of the phenyl ring of the parent compound. This result is taken as evidence for the occurrence of a skeletal rearrangement of the anisole molecular ion leading to an interchange between the carbon atom of the methyl group and the carbon atom at the 1‐position of the ring. The elimination of CO from the metastable ions generated from either phenoxyacetic acid or anisole gives rise to a composite metastable peak. Conclusive evidence as to the formation of [C7H7O]+ isomers other than the phenoxymethylene ion is not obtained, indicating that the composite metastable peak is a result of two competing reactions both leading to CO loss. Possible mechanisms of these reactions are discussed together with the mechanism of the skeletal rearrangement of the molecular ion of anisole prior to H˙ loss.