(2Z)-1-bromo-6-(4'-methoxybenzyloxy)-2-hexene | 307497-65-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (2Z)-1-bromo-6-(4'-methoxybenzyloxy)-2-hexene
• CAS: 307497-65-0
• 化学式: C₁₄H₁₉BrO₂
• 分子量: 299.208
• InChiKey: FDNIHDGOBMATKA-RQOWECAXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.94
• 重原子数：
  17.0
• 可旋转键数：
  8.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  18.46
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  (2Z)-1-bromo-6-(4'-methoxybenzyloxy)-2-hexene 在 lithium aluminium tetrahydride 、 正丁基锂 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 为溶剂， 反应 3.5h， 生成 (2E,5Z)-9-(4'-methoxybenzyloxy)-2,5-nonadien-1-ol
  参考文献：
  名称：

  Transformation of cis-Epoxy Compound to cis-2,3-Disubstituted Oxane and Investigation on Propagation Step in the Ring-Expansion Reactions of cis,trans-Diepoxy Systems

  摘要：

  Conversion of cis-epoxy compounds by successive ring-expansion reaction into trans-fused cyclic ethers was examined from both the initiation step and the propagation step. The ring-expansion reaction of cis-4,5-epoxy compounds containing a leaving group on C-1 was attempted as a unit process for the successive reaction. When a chloromesyl group was used as a leaving group, the ring expansion proceeded to give an oxane derivative (endo-type product) preferentially. On the other hand, investigation of the propagation step was carried out with respect to epoxy oxane derivatives. It was clarified that the ring-expansion reaction of cis-2,3-disubstituted oxane derivatives provided spiro acetals as products, not the desired trans-fused cyclic ethers, owing to the reaction pathway triggered by 1,2-hydride rearrangement. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(00)00622-0
• 作为产物：
  描述：

  (2Z)-6-(4'-methoxybenzyloxy)-2-hexen-1-ol 在 四溴化碳 、 三苯基膦 作用下， 以 二氯甲烷 为溶剂， 以85%的产率得到(2Z)-1-bromo-6-(4'-methoxybenzyloxy)-2-hexene
  参考文献：
  名称：

  Transformation of cis-Epoxy Compound to cis-2,3-Disubstituted Oxane and Investigation on Propagation Step in the Ring-Expansion Reactions of cis,trans-Diepoxy Systems

  摘要：

  Conversion of cis-epoxy compounds by successive ring-expansion reaction into trans-fused cyclic ethers was examined from both the initiation step and the propagation step. The ring-expansion reaction of cis-4,5-epoxy compounds containing a leaving group on C-1 was attempted as a unit process for the successive reaction. When a chloromesyl group was used as a leaving group, the ring expansion proceeded to give an oxane derivative (endo-type product) preferentially. On the other hand, investigation of the propagation step was carried out with respect to epoxy oxane derivatives. It was clarified that the ring-expansion reaction of cis-2,3-disubstituted oxane derivatives provided spiro acetals as products, not the desired trans-fused cyclic ethers, owing to the reaction pathway triggered by 1,2-hydride rearrangement. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(00)00622-0