2,2-bis(methylseleno)octane | 66030-44-2

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 2,2-bis(methylseleno)octane
• 英文别名: 2,2-Bis(methylselanyl)octane
• CAS: 66030-44-2
• 化学式: C₁₀H₂₂Se₂
• 分子量: 300.205
• InChiKey: WXXPZDWJJHYSLC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  12
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 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：

  2,2-bis(methylseleno)octane 在 碘甲烷 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 2-methylselanyl-oct-2-ene
  参考文献：
  名称：

  Synthetic route to vinyl selenides and vinyl selenoxides

  摘要：

  DOI：

  10.1016/s0040-4039(01)83367-0
• 作为产物：
  描述：

  2,2-二甲氧基辛烷 在 三氟化硼乙醚 、 四氯化钛 作用下， 以 二氯甲烷 为溶剂， 反应 4.0h， 生成 2,2-bis(methylseleno)octane
  参考文献：
  名称：

  Lewis Acid Activated Reactions of Mixed (O,Se) Acetals with Allyltrimethylsilane and Allyltributylstannane

  摘要：

  On the basis of preferential complexation of oxygen or selenium atoms by different Lewis acids, it was expected that, depending on the Lewis acid employed, the title reactions would lead to selective formation of homoallyl ethers or homoallyl selenides. This has not been confirmed by experiment: in almost all the reactions tried homoallyl ethers largely predominated; or were the exclusive allylation products, even when strongly oxygenophilic Lewis acids such as TiCl4 were used. In the cases of the latter type of Lewis acids, the results observed with (O,Se) and a couple of(O,S) mixed acetals are-interpreted in terms of two major factors operating in opposite directions. H-1 NMR data of a mixture of TiCl4 and (O,Se) acetal indicate that preferential (but not exclusive) complexation of the oxygen moiety takes place indeed. However, because of the much stronger C-O bond as compared to the C-Se bond, this latter.(also activated by the Lewis acid to some extent) undergoes cleavage by allyl metals to give homoallyl ethers as predominating products. In contrast with BF3 . OEt(2), boron trichloride and boron tribromide were found to react with (O,Se) acetals to give the corresponding alpha-halo selenides, which in turn were cleanly transformed into homoallyl selenides on reaction with allyltrimethylsilane in the presence of tin tetrachloride.

  DOI：

  10.1021/jo00124a029

文献信息

• Aldol-type condensation vs. vinyl selenide formation from selenoacetals
  作者：K. M. Nsunda、L. Hevesi

  DOI：10.1039/c39870001518

  日期：——

  Rapid addition of a tertiary amine to tin(IV) chloride–selenoacetal mixtures leads to the corresponding vinyl selenides in good yield, whereas slow addition of the amine base gives aldol condensation products.

  将叔胺快速添加到氯化锡（IV）-硒缩醛混合物中可得到相应的乙烯基硒化物，收率很高，而胺碱的缓慢添加会产生醛醇缩合产物。
• Synthesis of selenoacetals
  作者：M. Clarembeau、A. Cravador、W. Dumont、L. Hevesi、A. Krief、J. Lucchetti、D. Van Ende

  DOI：10.1016/s0040-4020(01)96719-5

  日期：1985.1
• Synthesis of α-selenoalkyllithium compounds
  作者：A. Krief、W. Dumont、M. Clarembeau、G. Bernard、E. Badaoui

  DOI：10.1016/s0040-4020(01)80063-6

  日期：1989.1
• Hermans, Bernard; Hevesi, Laszlo, Bulletin des Societes Chimiques Belges, 1994, vol. 103, # 5-6, p. 257 - 262
  作者：Hermans, Bernard、Hevesi, Laszlo

  DOI：——

  日期：——
• The reaction of allyltrimethylsilane with selenium-stabilized carbon electrophiles
  作者：Bernard Hermans、Laszlo Hevesi

  DOI：10.1016/s0040-4039(00)97623-8

  日期：1990.1