1-bromo-7-methyl-3E,5E-octadiene | 127934-27-4

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 有机溴化物
• 英文名称: 1-bromo-7-methyl-3E,5E-octadiene
• 英文别名: (3E,5E)-1-bromo-7-methylocta-3,5-diene
• CAS: 127934-27-4
• 化学式: C₉H₁₅Br
• 分子量: 203.122
• InChiKey: MAPKFDMXXPSPOJ-BDWKERMESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  1-cyclopropyl-4-methyl-2E-penten-1-one 在 sodium tetrahydroborate 、 cerium(III) chloride 、 三甲基溴硅烷 、 zinc dibromide 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 10.25h， 生成 1-bromo-7-methyl-3E,5E-octadiene
  参考文献：
  名称：

  Simple synthesis of?-silyloxyacylcyclopropanes and the homoallyl rearrangement of cyclopropylcarbinols by the action of trimethylsilyl halides in the presence of zinc halides

  摘要：

  The ZnCl2 catalyzed condensation of 1-trimethylsilyloxyvinylcyclopropane with aldehydes and ketones gave beta-silyloxyacylcyclopropanes, which were converted by the action of TsOH in boiling benzene into 1-cyclopropyl-2E-alken-1-ones. Reduction of the latter gave saturated and allyl cyclopropylcarbinols, which by means of Me3SiX and catalytic amounts of ZnX2 (X = Cl, Br) were highly selectively converted into the corresponding linear mono- and dienic E-homoallyl halides. The sequence of reactions that was worked out provided an effective synthesis of 3E-dodecenyl acetate, a sex pheromone of the sugar beet moth.

  DOI：

  10.1007/bf00958248

文献信息

• Synthesis of ?-silyloxyacylcyclopropanes catalyzed by zinc salts and the homoallylic rearrangement of cyclopropylcarbinols by the action of trimethylsilyl halides
  作者：N. M. Ivanova、B. A. Cheskis、A. M. Moiseenkov、O. M. Nefedov

  DOI：10.1007/bf00963040

  日期：1990.1
• IVANOVA, N. M.;CHEEKIS, B. A.;MOISEENKO, A. M.;NEFEDOV, O. M., IZV. AN CCCP. CEP. XIM.,(1990) N, S. 225-236
  作者：IVANOVA, N. M.、CHEEKIS, B. A.、MOISEENKO, A. M.、NEFEDOV, O. M.

  DOI：——

  日期：——
• CHESKIS, B. A.;IVANOVA, N. M.;MOISEENKOV, A. M.;NEFEDOV, O. M., IZV. AN CCCP. CEP. XIM.,(1990) N, S. 2025-2036
  作者：CHESKIS, B. A.、IVANOVA, N. M.、MOISEENKOV, A. M.、NEFEDOV, O. M.

  DOI：——

  日期：——
• Simple synthesis of?-silyloxyacylcyclopropanes and the homoallyl rearrangement of cyclopropylcarbinols by the action of trimethylsilyl halides in the presence of zinc halides
  作者：B. A. Cheskis、N. M. Ivanova、A. M. Moiseenkov、O. M. Nefedov

  DOI：10.1007/bf00958248

  日期：1990.9

  The ZnCl2 catalyzed condensation of 1-trimethylsilyloxyvinylcyclopropane with aldehydes and ketones gave beta-silyloxyacylcyclopropanes, which were converted by the action of TsOH in boiling benzene into 1-cyclopropyl-2E-alken-1-ones. Reduction of the latter gave saturated and allyl cyclopropylcarbinols, which by means of Me3SiX and catalytic amounts of ZnX2 (X = Cl, Br) were highly selectively converted into the corresponding linear mono- and dienic E-homoallyl halides. The sequence of reactions that was worked out provided an effective synthesis of 3E-dodecenyl acetate, a sex pheromone of the sugar beet moth.