(Z)-1,3-bis(phenylseleno)-6-hydroxy-2-hexen-1-one | 137540-85-3

• 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: (Z)-1,3-bis(phenylseleno)-6-hydroxy-2-hexen-1-one
• 英文别名: Se-phenyl (Z)-6-hydroxy-3-phenylselanylhex-2-eneselenoate
• CAS: 137540-85-3
• 化学式: C₁₈H₁₈O₂Se₂
• 分子量: 424.26
• InChiKey: LZRWCJMHVVARTI-VKAVYKQESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.23
• 重原子数：
  22
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  4-戊炔-1-醇 、 二苯基二硒醚 在 四(三苯基膦)钯 、 一氧化碳 作用下， 以 苯 为溶剂， 80.0 ℃ 、1.47 MPa 条件下， 反应 15.0h， 以6%的产率得到(Z)-4,5-Bis-phenylselanyl-pent-4-en-1-ol
  参考文献：
  名称：

  Palladium-catalyzed addition and carbonylative addition of diaryl disulfides and diselenides to terminal acetylenes

  摘要：

  Novel transition-metal-catalyzed reactions of disulfides and diselenides with acetylenes are described. In the of tetrakis(triphenylphosphine)palladium(0), [Pd(PPh3)4], the (1) of diaryl disulfides and diselenides to terminal acetylenes 1 takes place stereoselectively to give high yields of (Z)-1,2-bis(arylthio)-1-alkenes 2 and (Z)-1,2-bis(arylseleno)-1-alkenes 3, respectively. A mechanistic proposal includes the following: (1) oxidative addition of (ArY)2 [Y = S, Se] to low-valent palladium species, (2) stereoselective cis-thiopalladation or cis-selenopalladation to acetylenes to form a cis-vinylpalladium intermediate, and (3) reductive elimination of the product with retention of the stereochemistry. When the reaction of diaryl disulfides and diselenides with terminal acetylenes is performed under the pressure of carbon monoxide, the carbonylative addition occurs to afford (Z)-1,3-bis(arylthio)-2-alken-1-ones 4 and (Z)-1,3-bis(arylseleno)-2-alken-1-ones 5, respectively. Carbon monoxide is regioselectively incorporated on the side of the terminal carbon of the acetylenes.

  DOI：

  10.1021/ja00026a013

文献信息

• Palladium-Catalyzed Carbonylative Lactonization of Propargyl Alcohols with Organic Dichalcogenides and Carbon Monoxide
  作者：Akiya Ogawa、Hitoshi Kuniyasu、Noboru Sonoda、Toshikazu Hirao

  DOI：10.1021/jo970973q

  日期：1997.11.1

  The reaction of propargylic alcohols with diaryl disulfides and carbon monoxide in the presence of tetrakis(triphenylphosphine)palladium leads to a novel thiolative lactonization to afford beta-(arylthio)-alpha,beta-unsaturated lactones in moderate to good yields. Similar conditions can be employed with homopropargylic alcohols, giving the corresponding delta-lactones with a beta-arylthio group successfully

  在四（三苯基膦）钯存在下，炔丙醇与二芳基二硫化物和一氧化碳的反应导致新的硫醇化内酯化，以中等至良好的产率提供β-（芳硫基）-α，β-不饱和内酯。均丙醇可以采用相似的条件，成功地得到相应的带有β-芳硫基的δ-内酯。使用二芳基二硒化物代替二芳基二硫化物的反应也获得了相似的一锅硫代/内酯化序列，从而提供了相应的β-硒代丁烯内酯（7）。