1,5-Bis-(2,5-dimethoxy-4-methyl-phenyl)-pentane-1,5-dione | 180578-81-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1,5-Bis-(2,5-dimethoxy-4-methyl-phenyl)-pentane-1,5-dione
• 英文别名: 1,5-Bis(2,5-dimethoxy-4-methylphenyl)pentane-1,5-dione
• CAS: 180578-81-8
• 化学式: C₂₃H₂₈O₆
• 分子量: 400.472
• InChiKey: AMDQRYLFEWQBED-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  29
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.39
• 拓扑面积：
  71.1
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  1,5-Bis-(2,5-dimethoxy-4-methyl-phenyl)-pentane-1,5-dione 在 palladium on activated charcoal 氢气 、 三溴化硼 作用下， 以 二氯甲烷 、 溶剂黄146 为溶剂， 反应 16.0h， 生成
  参考文献：
  名称：

  Huenig, Siegfried; Sinzger, Klaus; Kemmer, Martina, European Journal of Organic Chemistry, 1998, # 9, p. 1977 - 1988

  摘要：

  DOI：
• 作为产物：
  描述：

  戊二酰基二氯 、 2,5-二甲氧基甲苯 在 三氯化铝 作用下， 以 二硫化碳 为溶剂， 反应 16.0h， 以50%的产率得到1,5-Bis-(2,5-dimethoxy-4-methyl-phenyl)-pentane-1,5-dione
  参考文献：
  名称：

  Huenig, Siegfried; Sinzger, Klaus; Kemmer, Martina, European Journal of Organic Chemistry, 1998, # 9, p. 1977 - 1988

  摘要：

  DOI：

文献信息

• Efficient Hydrogenation of Sterically Hindered Olefins with Borane−Methyl Sulfide Complex
  作者：R. Rathore、U. Weigand、J. K. Kochi

  DOI：10.1021/jo960357e

  日期：1996.1.1

  Sterically hindered olefins are efficiently reduced to the corresponding alkanes by the borane-methyl sulfide (BMS) complex at room temperature (or below) in dichloromethane containing a mild one-electron oxidant (such as an aromatic cation radical) or by the passage of an anodic current. In an alternative procedure, the hydrogenation of the same (electron-rich) olefins with the EMS complex (in the absence of a one-electron oxidant) is also carried out-in the presence of a strong Bronsted acid (such as HBF4). In the oxidative activation, olefin cation radicals are the first observable intermediates, and separate experiments (including transient electrochemistry) confirm the facile reduction of the olefin cation radical by borane to produce the corresponding alkane. The direct protonation of olefins produces carbocationic intermediates which are also efficiently reduced by borane to the corresponding alkanes. The intermediacy of both olefin cation radicals and carbocations in the hydrogenation procedure with borane is discussed.
• Huenig, Siegfried; Sinzger, Klaus; Kemmer, Martina, European Journal of Organic Chemistry, 1998, # 9, p. 1977 - 1988
  作者：Huenig, Siegfried、Sinzger, Klaus、Kemmer, Martina、Langohr, Uwe、Rieder, Herald、et al.

  DOI：——

  日期：——