tetrakis-(4-methoxy-phenyl)-oxirane | 25125-00-2

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: tetrakis-(4-methoxy-phenyl)-oxirane
• 英文别名: Tetrakis-(4-methoxy-phenyl)-oxiran
• CAS: 25125-00-2
• 化学式: C₃₀H₂₈O₅
• 分子量: 468.549
• InChiKey: OPUUHIPCYNFTAA-UHFFFAOYSA-N

物化性质

• 沸点：
  547.4±50.0 °C(Predicted)
• 密度：
  1.189±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.94
• 重原子数：
  35.0
• 可旋转键数：
  8.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  49.45
• 氢给体数：
  0.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  tetrakis-(4-methoxy-phenyl)-oxirane 在 cation-radical orange 9,10-dimethoxy-1,4:5,8-dimethano-1,2,3,4,5,6,7,8-octahydroanthracene*BF₄^(1-) tetrafluoroboric acid 作用下， 以 二氯甲烷 为溶剂， 反应 0.1h， 生成 Tetrakis-(4-methoxy-phenyl)-ethylidene-oxonium
  参考文献：
  名称：

  Acid Catalysis vs. Electron-Transfer Catalysis via Organic Cations or Cation-Radicals as the Reactive Intermediate. Are These Distinctive Mechanisms?

  摘要：

  Proton transfer to aromatic and olefinic donors (D) lends to the facile interchange of transient carbocations (DH+) and cation-radical (D+.). The same types of cation and cation-radical are reactive intermediates in the acid catalysis and the electron-transfer catalysis of such organic transformations as benzylic coupling, epoxide.-pinacol rearrangements and cis-trans isomerization of stilbenes when they are both carried out under otherwise identical reaction conditions, However, the rapid exchange of diamagnetic cations and paramagnetic cation-radicals blurs the traditional view of sepal ate electrophilic and homolytic processes, and rigorous experimental evidence is required to establish whether acid catalysis and electron-transfer catalysis actually represent distinct mechanistic categories.

  DOI：

  10.3891/acta.chem.scand.52-0114
• 作为产物：
  描述：

  1,1,2,2-四(4-甲氧基苯基)乙烯 在 lead dioxide 作用下， 生成 tetrakis-(4-methoxy-phenyl)-oxirane
  参考文献：
  名称：

  Modeling aqueous alteration of CM carbonaceous chondrites

  摘要：

  Abstract— Results from an inorganic geochemical modeling study support a scenario in which low‐temperature aqueous alteration of an anhydrous CM asteroidal parent body and melt water from H2O and CO2 ices produces the altered assemblage observed in CM carbonaceous chondrites (chrysotile, greenalite, tochilinite, cronstedtite and minor calcite and magnetite). We consider a range of possible precursor mineral assemblages, varying with respect to the Fe‐oxidation state of the initial anhydrous phases. The aqueous solutions produced by this alteration are generally strongly basic and reducing and a large quantity of H2, and possible CH4, gas can be released during aqueous alteration.

  DOI：

  10.1111/j.1945-5100.2001.tb01868.x

文献信息

• Radical cation catalyzed pinacol-pinacolone rearrangement
  作者：J.Arce de Sanabia、Arturo E. Carrión

  DOI：10.1016/s0040-4039(00)61489-2

  日期：1993.12

  When electron-rich benzopinacols are electrooxidized or treated with catalytic amounts of NOBF4 the corresponding pinacolones are obtained in quantitative yields. Control experiments rule out the possibility of adventitious acid intervening in the reaction and a radical-cation chain electron-transfer mechanism is proposed.

  当富电子的苯并频哪醇被电氧化或用催化量的NOBF 4处理时，可以定量产率获得相应的频哪醇。控制实验排除了不定酸介入反应的可能性，并提出了自由基-阳离子链电子转移机理。
• Wizinger, Chemische Berichte, 1927, vol. 60, p. 1386
  作者：Wizinger

  DOI：——

  日期：——