(1E,4E)-2,4-dimethyl-1,3,5-triphenylpenta-1,4-dien-3-ol | 1415893-75-2

• 分子结构分类: 有机化合物 - 木脂素、新木脂素和相关化合物
• 英文名称: (1E,4E)-2,4-dimethyl-1,3,5-triphenylpenta-1,4-dien-3-ol
• CAS: 1415893-75-2
• 化学式: C₂₅H₂₄O
• 分子量: 340.465
• InChiKey: KHWHQXWCCUIMCV-FRCMOREXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.7
• 重原子数：
  26
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  马来酸酐 、 (1E,4E)-2,4-dimethyl-1,3,5-triphenylpenta-1,4-dien-3-ol 在 2,3,4,5-四氟苯硼酸 作用下， 以 硝基甲烷 为溶剂， 反应 16.0h， 以95%的产率得到
  参考文献：
  名称：

  Mild boronic acid catalyzed Nazarov cyclization of divinyl alcohols in tandem with Diels–Alder cycloaddition

  摘要：

  Boronic acid catalysis (BAC) was applied to a sequential Nazarov cyclization of divinyl alcohols/Diels-Alder cycloadditions leading to the preparation of highly functionalized bicyclic compounds in a highly diastereoselective fashion. In these one-pot transformations, highly functionalized dienes were generated in situ through boronic acid catalyzed Nazarov cyclizations of divinyl alcohols and were subsequently trapped with different dienophiles such as maleic anhydride and phenylmaleimide. The tandem reactions proceed directly from divinyl alcohols under very mild reaction conditions using air-stable catalysts, and as such this methodology represents a greener alternative to existing methods employing strong Lewis and Bronsted acids. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2012.10.100
• 作为产物：
  描述：

  1,5-二苯基-2,4-二甲基-1,4-戊二烯-3-酮 、 苯基锂 以 四氢呋喃 为溶剂， 反应 0.5h， 以74%的产率得到(1E,4E)-2,4-dimethyl-1,3,5-triphenylpenta-1,4-dien-3-ol
  参考文献：
  名称：

  Mild boronic acid catalyzed Nazarov cyclization of divinyl alcohols in tandem with Diels–Alder cycloaddition

  摘要：

  Boronic acid catalysis (BAC) was applied to a sequential Nazarov cyclization of divinyl alcohols/Diels-Alder cycloadditions leading to the preparation of highly functionalized bicyclic compounds in a highly diastereoselective fashion. In these one-pot transformations, highly functionalized dienes were generated in situ through boronic acid catalyzed Nazarov cyclizations of divinyl alcohols and were subsequently trapped with different dienophiles such as maleic anhydride and phenylmaleimide. The tandem reactions proceed directly from divinyl alcohols under very mild reaction conditions using air-stable catalysts, and as such this methodology represents a greener alternative to existing methods employing strong Lewis and Bronsted acids. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2012.10.100