(2Z,4E)-6,6-dimethyl-1-phenyl-2,4-heptadien-1-ol | 1497434-31-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: (2Z,4E)-6,6-dimethyl-1-phenyl-2,4-heptadien-1-ol
• 英文别名: (2Z,4E)-6,6-dimethyl-1-phenylhepta-2,4-dien-1-ol
• CAS: 1497434-31-7
• 化学式: C₁₅H₂₀O
• 分子量: 216.323
• InChiKey: CXDNTZMGDBKUCD-NTLHZVPKSA-N

物化性质

• 沸点：
  329.1±11.0 °C(Predicted)
• 密度：
  0.968±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  苄基丙炔基醚 在 4-二甲氨基吡啶 、 正丁基锂 、 双(1,2-双(二苯基膦)乙烷)钯 、 三乙胺 、 红铝 、 potassium hydroxide 作用下， 以 四氢呋喃 、 正己烷 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 25.41h， 生成 (2Z,4E)-6,6-dimethyl-1-phenyl-2,4-heptadien-1-ol
  参考文献：
  名称：

  Stereoselective Synthesis of (2Z,4E)-2,4-Pentadien-1-ols via Sequential 1,4-Elimination Reaction and [1,2]-Wittig Rearrangement Starting from (E)-4-Alkoxy-2-butenyl Benzoates

  摘要：

  The sequential 1,4-elimination reaction of (E)-4-alkoxy-2-butenyl benzoates and [1,2]-Wittig rearrangement gave (2Z,4E)-2,4-pentadien-1-ols stereoselectively. Z-Selective formation of intermediary vinyl ethers, whose stereochemistry was well elucidated by the "syn-effect", was achieved by treatment of the 2-butenyl benzoates with KOH in the presence of Pd catalyst. The subsequent [1,2]-Wittg rearrangement by use of n-BuLi proceeded with retention of the stereochemistry of the intermediary vinyl ethers.

  DOI：

  10.1021/jo402272r

文献信息

• (<i>Z</i>)-Selective Enol Triflation of α-Alkoxyacetoaldehydes: Application to Synthesis of (<i>Z</i>)-Allylic Alcohols via Cross-Coupling Reaction and [1,2]-Wittig Rearrangement
  作者：Fumiya Kurosawa、Takeo Nakano、Takahiro Soeta、Kohei Endo、Yutaka Ukaji

  DOI：10.1021/acs.joc.5b00647

  日期：2015.6.5

  corresponding (Z)-vinyl triflates was achieved by treatment with phenyl triflimide and DBU. The stereochemistry was explained by the “syn-effect,” which was attributed primarily to an σ → π* interaction. The β-alkoxy vinyl triflates obtained were applied to the stereoselective synthesis of structurally diverse (Z)-allylic alcohols via transition metal-catalyzed cross-coupling reaction and [1,2]-Wittig

  α-烷氧基乙醛向相应的（Z）-乙烯基三氟甲磺酸酯的立体选择性转化是通过用三氟甲苯苯基酯和DBU处理而实现的。立体化学由“顺效应”解释，“顺效应”主要归因于σ→π*相互作用。通过过渡金属催化的交叉偶联反应和[1,2] -Wittig重排，将获得的β-烷氧基乙烯基三氟甲磺酸酯用于结构多样的（Z）-烯丙基醇的立体选择性合成。
• Stereoselective Synthesis of (2<i>Z</i>,4<i>E</i>)-2,4-Pentadien-1-ols via Sequential 1,4-Elimination Reaction and [1,2]-Wittig Rearrangement Starting from (<i>E</i>)-4-Alkoxy-2-butenyl Benzoates
  作者：Takeo Nakano、Takahiro Soeta、Kohei Endo、Katsuhiko Inomata、Yutaka Ukaji

  DOI：10.1021/jo402272r

  日期：2013.12.20

  The sequential 1,4-elimination reaction of (E)-4-alkoxy-2-butenyl benzoates and [1,2]-Wittig rearrangement gave (2Z,4E)-2,4-pentadien-1-ols stereoselectively. Z-Selective formation of intermediary vinyl ethers, whose stereochemistry was well elucidated by the "syn-effect", was achieved by treatment of the 2-butenyl benzoates with KOH in the presence of Pd catalyst. The subsequent [1,2]-Wittg rearrangement by use of n-BuLi proceeded with retention of the stereochemistry of the intermediary vinyl ethers.