dimethyl (2-hydroxy-2-phenyl)ethylphosphonate

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机膦酸及其衍生物
• 英文名称: dimethyl (2-hydroxy-2-phenyl)ethylphosphonate
• 英文别名: 2-Dimethoxyphosphoryl-1-phenylethanol
• 化学式: C₁₀H₁₅O₄P
• 分子量: 230.2
• InChiKey: VFXXTNBZIOXZJV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  15
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  dimethyl (2-hydroxy-2-phenyl)ethylphosphonate 在 水 、 cesium fluoride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 48.0h， 以54%的产率得到苯乙烯
  参考文献：
  名称：

  The Olefin Synthesis fromβ-Hydroxyalkylphosphonates Induced by Fluorides or Relatively Weak Bases

  摘要：

  利用烷基膦酸酯和羰基化合物可以方便地合成的β-羟基烷基膦酸酯，用氟离子（如CsF）或者在N,N-二甲基甲酰胺溶剂中使用相对较弱的碱（如K2CO3）处理后，可以以良好收率得到相应的烯烃产物。相较于碱而言，1当量的水的加入对于提高烯烃的产率具有明显作用。通过X射线晶体学分析，确定了赤型-二甲基（2-羟基-1-甲基-2-苯基）乙基膦酸酯的立体化学结构。使用苏型异构体时，仅得到(E)-烯烃；而使用赤型富集异构体时，则主要得到(Z)-烯烃。这表明目前的烯化反应是通过顺式消除方式进行立体专一性进行的。

  DOI：

  10.1246/bcsj.71.209
• 作为产物：
  描述：

  苯甲醛 、 甲基膦酸二甲酯 在 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 0.16h， 以100%的产率得到dimethyl (2-hydroxy-2-phenyl)ethylphosphonate
  参考文献：
  名称：

  The Olefin Synthesis fromβ-Hydroxyalkylphosphonates Induced by Fluorides or Relatively Weak Bases

  摘要：

  利用烷基膦酸酯和羰基化合物可以方便地合成的β-羟基烷基膦酸酯，用氟离子（如CsF）或者在N,N-二甲基甲酰胺溶剂中使用相对较弱的碱（如K2CO3）处理后，可以以良好收率得到相应的烯烃产物。相较于碱而言，1当量的水的加入对于提高烯烃的产率具有明显作用。通过X射线晶体学分析，确定了赤型-二甲基（2-羟基-1-甲基-2-苯基）乙基膦酸酯的立体化学结构。使用苏型异构体时，仅得到(E)-烯烃；而使用赤型富集异构体时，则主要得到(Z)-烯烃。这表明目前的烯化反应是通过顺式消除方式进行立体专一性进行的。

  DOI：

  10.1246/bcsj.71.209

文献信息

• 一种β-羟基膦酸酯衍生物的制备方法
  申请人：苏州大学

  公开号：CN104370960B

  公开（公告）日：2017-08-01

  本发明公开了一种β‑羟基膦酸酯衍生物的制备方法，具体为将芳基乙烯衍生物、磷试剂、醋酸锰溶于溶剂中，反应在20～60℃进行，制得β‑羟基膦酸酯衍生物。β‑羟基膦酸酯衍生物在氨水作用下得到β‑氨基膦酸酯衍生物。本发明使用芳基乙烯衍生物为起始物，原料易得、种类很多；利用本发明的方法得到的产物类型多样，既可以直接使用、又可以用于其他进一步的反应；同时，合成路线简短、反应条件温和、反应操作和后处理过程简单、产率较高，适合于规模化生产。
• Conformational Analysis of (2-Substituted-alkyl)phosphoryl Compounds. 1. NMR Spectroscopic Studies of Dialkyl (2-Hydroxyalkyl)phosphonates and Their Carboxylic Esters
  作者：Daniel G. Genov、John C. Tebby

  DOI：10.1021/jo950364n

  日期：1996.1.1

  Twelve (2-substituted-alkyl)phosphonates (2, 3) were synthesized and conformational analyses carried out by NMR spectroscopy. The conformational populations in six solvents with different polarities and in the presence of metal ions (Li+, Na+, Zn2+), were studied. Steric effects were studied by variation of the sizes of alkyl groups R(1) and R(2) and intramolecular interactions studied by derivatization of the hydroxy group X. In (2-hydroxyalkyl)phosphonates the most stable conformer ga, in which the phosphoryl group is gauche to the hydroxy group and anti to the alkyl group (R(1)), is favored particularly in less polar solvents such as C6D6 and CDCl3. In polar solvents the population of the less stable conformer ag, in which the phosphoryl group is gauche to the alkyl group (R(1)) and anti to the hydroxy group, is increased. Smaller alkyl groups R(1) (Me, Pr-n) allow more conformational freedom. Conversion of the hydroxy group to its carboxylic ester reduces the population of conformer ga so that, for R(1) = Pr-n, conformers go and ag are approximately equally populated. The presence of metal salts in the acetone-d(6) solutions causes an increase in the population of conformer ga in both (2-hydroxyalkyl)phosphonates and their carboxylic ester derivatives. The chemical shift difference between the diastereotopic alpha-methylene protons has been shown to be proportional to the population of conformer ga.
• Kinetic resolution of 2-hydroxy-2-aryl-ethylphosphonates by a non-enzymatic acylation catalyst
  作者：Laura Mesas-Sánchez、Alba E. Díaz-Álvarez、Petr Koukal、Peter Dinér

  DOI：10.1016/j.tet.2014.03.102

  日期：2014.6

  Optically pure hydroxyphosphonates are widely used as derivatizable compounds that can be incorporated into a variety of synthetic strategies for the preparation of other high value organic products. A non-enzymatic kinetic resolution procedure to obtain chiral 2-hydroxy-2-arylethylphosphonates from the easily available racemic counterparts is described. A range of 2-hydroxy-2-arylethylphosphonates was efficiently resolved employing a planar-chiral DMAP derived catalyst with good selectivities (up to S=68). The chiral hydroxyphosphonates were isolated in good yields and high enantiomeric excess (>94% ee). (C) 2014 Elsevier Ltd. All rights reserved.
• The Olefin Synthesis from<i>β</i>-Hydroxyalkylphosphonates Induced by Fluorides or Relatively Weak Bases
  作者：Takayuki Kawashima、Takafumi Ishii、Naoki Inamoto、Norihiro Tokitoh、Renji Okazaki

  DOI：10.1246/bcsj.71.209

  日期：1998.1

  β-Hydroxyalkylphosphonates, which were prepared readily from alkylphosphonates and carbonyl compounds, were treated with a fluoride ion such as CsF or with relatively weak bases such as K2CO3 in N,N-dimethylformamide to give the corresponding olefins in good yields. One molar equivalent of water to bases is effective for increasing the yields of olefins. The stereochemistry of erythro-dimethyl (2-hydroxy-1-methyl-2-phenyl)ethylphosphonate was determined by X-ray crystallographic analysis. Use of threo-isomer gave (E)-olefin exclusively, while that of erythro-enriched isomer afforded predominantly (Z)-olefin, indicating that the present olefination proceeds stereospecifically in a manner of syn-elimination.

  利用烷基膦酸酯和羰基化合物可以方便地合成的β-羟基烷基膦酸酯，用氟离子（如CsF）或者在N,N-二甲基甲酰胺溶剂中使用相对较弱的碱（如K2CO3）处理后，可以以良好收率得到相应的烯烃产物。相较于碱而言，1当量的水的加入对于提高烯烃的产率具有明显作用。通过X射线晶体学分析，确定了赤型-二甲基（2-羟基-1-甲基-2-苯基）乙基膦酸酯的立体化学结构。使用苏型异构体时，仅得到(E)-烯烃；而使用赤型富集异构体时，则主要得到(Z)-烯烃。这表明目前的烯化反应是通过顺式消除方式进行立体专一性进行的。
• Nonenzymatic kinetic resolution of racemic β-hydroxyalkanephosphonates with a chiral copper catalyst
  作者：Atsushi Moriyama、Shintaro Matsumura、Masami Kuriyama、Osamu Onomura

  DOI：10.1016/j.tetasy.2010.04.059

  日期：2010.4

  Kinetic resolution of beta-hydroxyalkanephosphonates was efficiently performed by 2-fluorobenzoylation in the presence of copper(II) triflate and (R,R)-Ph-BOX as a catalyst with good s value of up to 21 (C) 2010 Elsevier Ltd. All rights reserved.