2,6-diethyl-4,8-dimethyl-2,3,6,7 tetrahydro-s-indacene-1,5-dione | 392245-45-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 茚满类
• 英文名称: 2,6-diethyl-4,8-dimethyl-2,3,6,7 tetrahydro-s-indacene-1,5-dione
• 英文别名: 2,6-diethyl-4,8-dimethyl-1,5-dioxo-s-hydrindacene；2,6-Diethyl-4,8-dimethyl-2,3,6,7-tetrahydro-s-indacene-1,5-dione
• CAS: 392245-45-3
• 化学式: C₁₈H₂₂O₂
• 分子量: 270.371
• InChiKey: AZKPVHOMZHAQIQ-UHFFFAOYSA-N

物化性质

• 沸点：
  447.2±45.0 °C(Predicted)
• 密度：
  1.088±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,6-diethyl-4,8-dimethyl-2,3,6,7 tetrahydro-s-indacene-1,5-dione 在 正丁基锂 、 五氯化磷 作用下， 以 四氢呋喃 、 乙醚 、 正己烷 、 二氯甲烷 、 甲苯 为溶剂， 反应 54.0h， 生成
  参考文献：
  名称：

  Preparation and ESR characterization of polyalkyl-s-indacenyl anion-radicals from polyalkyl-1,5-dilithio-s-indacenes

  摘要：

  Polyalkyl-(or chloropolyalkyl)-s-indacenyl anion radicals were obtained from the organodilithium derivatives of the corresponding substituted-1,5-dihydro-s-indacenes by three different methods: (i) UV photolysis, (ii) oxidation by a ferrocenium salt, (iii) single electron transfer reaction from an electron rich olefin. The last reaction (iii) involves transient formation of an unstable polyalkyl-lithio-s-indacenyl imidazolidinium salt. The same salt, obtained by another way by reacting 1,3-dimethylimidazolidinium chloride with the polyalkyl-1,5-dilithio-s-indacene, also leads to the corresponding lithium polyalkyl-s-indacenyl anion radical. All lithium polyalkyl-s-indacenyl anion radicals studied were characterized from their ESR spectra. They present a characteristic symmetrical spin distribution. On the contrary a Rhodium-COD polyalkyl-s-indacene radical presents a non symmetrical spin distribution. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2010.10.002

文献信息

• Reactivity of 2,6-diethyl-4,8-dimethyl-1,5-dioxo-s-hydrindacene towards radical, anionic and cationic germylation
  作者：A. El Kadib、A. Castel、F. Delpech、P. Rivière、M. Rivière-Baudet、H. Gornitzka、P. Aguirre、J.M. Manriquez、I. Chavez、D. Abril

  DOI：10.1016/j.ica.2003.10.017

  日期：2004.3

  The synthesis and diastereoisomeric resolution of 2,6-diethyl-4,8-dimethyl-1,5-dioxo-s-hydrindacene allowed the determination of the structure of the meso compound by X-ray diffractometry. The diastereoisomers were inactive towards radical germylation but reacted with acidic hydrogermanes or germylithium yielding alpha-germylated alcohols. By contrast, they were poorly reactive towards germylamines or SET reactions. This diketone acts as an efficient spin trap in radical hydrogermylation of alkenes. (C) 2003 Elsevier B.V. All rights reserved.