(E)-2-(3-bromoprop-1-en-1-yl)-1,3,5-trimethylbenzene | 1632992-96-1

• 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: (E)-2-(3-bromoprop-1-en-1-yl)-1,3,5-trimethylbenzene
• 英文别名: 2-[(E)-3-bromoprop-1-enyl]-1,3,5-trimethylbenzene
• CAS: 1632992-96-1
• 化学式: C₁₂H₁₅Br
• 分子量: 239.155
• InChiKey: DQLFMMSCBZUEFE-SNAWJCMRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (E)-2-(3-bromoprop-1-en-1-yl)-1,3,5-trimethylbenzene 在 1-allyl-2,2,3-trimethyl-1-phenylphosphetanium bromide 、 lithium tri-t-butoxyaluminum hydride 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 16.0h， 生成 2,4,6-trimethylallylbenzene 、 (E)-2-(prop-1-en-1-yl)naphthalene
  参考文献：
  名称：

  Biphilic Organophosphorus Catalysis: Regioselective Reductive Transposition of Allylic Bromides via P^III/P^VRedox Cycling

  摘要：

  We report that a regioselective reductive transposition of primary allylic bromides is catalyzed by a biphilic organophosphorus (phosphetane) catalyst. Spectroscopic, evidence supports the formation of a penta:coordinate (sigma(5)-P) hydridophosphorane as a key reactive intermediate. Kinetics experiments and computational modeling are consistent with a unimolecular docomposition of the sigma(5)-P hydridophosphorane via a conceited cyclic transition,structure that delivers the observed allylic transposition and completes a novel P-III/P-V redox Catalytic cycle. These results broaden the growing repertoire., of reactions catalyzed within the P-III/P-V redox couple and suggest additional opportunities for organophosphorus,catalysis in a biphilic mode.

  DOI：

  10.1021/jacs.5b01899
• 作为产物：
  描述：

  2,4,6-三甲基苯甲醛 在 三溴化磷 、 sodium hydride 、 二异丁基氢化铝 作用下， 以 四氢呋喃 、 乙醚 、 正己烷 、 mineral oil 为溶剂， 反应 3.5h， 生成 (E)-2-(3-bromoprop-1-en-1-yl)-1,3,5-trimethylbenzene
  参考文献：
  名称：

  Biphilic Organophosphorus Catalysis: Regioselective Reductive Transposition of Allylic Bromides via P^III/P^VRedox Cycling

  摘要：

  We report that a regioselective reductive transposition of primary allylic bromides is catalyzed by a biphilic organophosphorus (phosphetane) catalyst. Spectroscopic, evidence supports the formation of a penta:coordinate (sigma(5)-P) hydridophosphorane as a key reactive intermediate. Kinetics experiments and computational modeling are consistent with a unimolecular docomposition of the sigma(5)-P hydridophosphorane via a conceited cyclic transition,structure that delivers the observed allylic transposition and completes a novel P-III/P-V redox Catalytic cycle. These results broaden the growing repertoire., of reactions catalyzed within the P-III/P-V redox couple and suggest additional opportunities for organophosphorus,catalysis in a biphilic mode.

  DOI：

  10.1021/jacs.5b01899

文献信息

• Synthesis of Allylic and Propargylic Trifluoromethyl Thioethers by Copper(I)-Catalyzed Trifluoromethylthiolation of Allylic Bromides and Propargylic Chlorides
  作者：Mingguang Rong、Dongzhe Li、Ronglu Huang、Yangjie Huang、Xiaoyan Han、Zhiqiang Weng

  DOI：10.1002/ejoc.201402480

  日期：2014.8

  copper(I)-catalyzed trifluoromethylthiolation of allylic bromides by using elemental sulfur and CF3SiMe3. This rate of this transformation was significantly accelerated in the presence of 18-crown-6, and the reaction afforded the desired products in moderate to excellent yields with high stereo- and regioselectivity. This method can tolerate a number of functional groups and provides facile access to a variety

  报道了一种使用元素硫和 CF3SiMe3 对烯丙基溴进行铜 (I) 催化的三氟甲基硫醇化反应的有效方法。在 18-crown-6 的存在下，这种转化速度显着加快，反应以中等至极好的收率提供了所需的产物，具有高立体选择性和区域选择性。这种方法可以容忍许多官能团，并且可以轻松获得各种烯丙基三氟甲基硫醚。还研究了铜 (I) 催化的炔丙基氯化物的三氟甲硫基化反应。提出了一种涉及烯丙基铜 (III) 中间体的合理机制。
• Synthesis of propargylic and allylic trifluoromethyl selenoethers by copper-mediated trifluoromethylselenolation of propargylic chlorides and allylic bromides
  作者：Mingguang Rong、Ronglu Huang、Yi You、Zhiqiang Weng

  DOI：10.1016/j.tet.2014.09.091

  日期：2014.11

  The copper-mediated trifluoromethylselenolation of propargylic chlorides and allylic bromides is described. This approach provides a wide range of propargylic and allylic trifluoromethyl selenoethers in moderate to good yields. These results open the way to synthesis strategies for various trifluoromethylselenolated compounds.

  描述了炔丙基氯化物和烯丙基溴的铜介导的三氟甲基硒化。该方法以中等至良好的产率提供了各种炔丙基和烯丙基三氟甲基硒醚。这些结果为各种三氟甲基硒化化合物的合成策略开辟了道路。