2,3-dilithio-4-methyl-1,1-pentamethylene-1,3-pentadiene | 207682-25-5

• 分子结构分类: 有机化合物
• 英文名称: 2,3-dilithio-4-methyl-1,1-pentamethylene-1,3-pentadiene
• CAS: 207682-25-5
• 化学式: C₁₁H₁₆Li₂
• 分子量: 162.13
• InChiKey: QRZBHAIJORPLRZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.84
• 重原子数：
  13.0
• 可旋转键数：
  1.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  2,3-dilithio-4-methyl-1,1-pentamethylene-1,3-pentadiene 以 乙醚 为溶剂， 反应 168.0h， 生成
  参考文献：
  名称：

  Controlled Rearrangement of 2,3-Dilithio-1,3-butadienes to 2,5-Dilithio-1,3-butadienes: Synthesis of 2-Isopropylidene-2,5-dihydrosilols

  摘要：

  3,4-Dilithio-2,5-dimethyl-2,4-hexadiene (4a) rearranges to the cross-conjugated 2,5-dimethylhexadienediyl dianion 11a. A mechanistic investigation proves the intermolecularity of this rearrangement, which is also observed when starting from 4b. The 3-lithio-2,5-dimethylhexadienyl anion Ipa with one vinyllithium and one allyllithium group, is a true intermediate in this rearrangement, its synthetic potential is employed in the reaction with dichlorosilanes to form 2-isopropylidene-2,5-dihydrosilols 8.

  DOI：

  10.1002/(sici)1099-0690(199805)1998:5<793::aid-ejoc793>3.0.co;2-3
• 作为产物：
  描述：

  1,1-Pentamethylen-4-methyl-penta-1,2,3-trien 在 lithium 作用下， 生成 2,3-dilithio-4-methyl-1,1-pentamethylene-1,3-pentadiene
  参考文献：
  名称：

  Controlled Rearrangement of 2,3-Dilithio-1,3-butadienes to 2,5-Dilithio-1,3-butadienes: Synthesis of 2-Isopropylidene-2,5-dihydrosilols

  摘要：

  3,4-Dilithio-2,5-dimethyl-2,4-hexadiene (4a) rearranges to the cross-conjugated 2,5-dimethylhexadienediyl dianion 11a. A mechanistic investigation proves the intermolecularity of this rearrangement, which is also observed when starting from 4b. The 3-lithio-2,5-dimethylhexadienyl anion Ipa with one vinyllithium and one allyllithium group, is a true intermediate in this rearrangement, its synthetic potential is employed in the reaction with dichlorosilanes to form 2-isopropylidene-2,5-dihydrosilols 8.

  DOI：

  10.1002/(sici)1099-0690(199805)1998:5<793::aid-ejoc793>3.0.co;2-3