5,10-dimethyl-4b,5,9b,10-tetrahydro-indeno[2,1-a]indene | 862204-32-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 茚满类
• 英文名称: 5,10-dimethyl-4b,5,9b,10-tetrahydro-indeno[2,1-a]indene
• 英文别名: 5,10-Dimethyl-4b,5,9b,10-tetrahydro-indeno[2,1-a]inden；5,10-Dimethyl-4b,5,9b,10-tetrahydroindeno[2,1-a]indene；5,10-dimethyl-4b,5,9b,10-tetrahydroindeno[2,1-a]indene
• CAS: 862204-32-8
• 化学式: C₁₈H₁₈
• 分子量: 234.341
• InChiKey: WZXGNCJOEJQDQJ-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  5,10-dimethyl-4b,5,9b,10-tetrahydro-indeno[2,1-a]indene 在 正丁基锂 作用下， 以 环己烷 为溶剂， 生成 5,10-dimethyldibenzopentalene dianion
  参考文献：
  名称：

  A carbon-13 NMR study of the ion pair structure of the dibenzo[b,f]pentalene dianion

  摘要：

  AbstractThe 1H and 13C NMR chemical shifts of dibenzo[b, f]pentalene and its 5,10‐dimethyl derivative are presented and compared with those of the corresponding dilithium dianions. As probed by the relative 13C NMR chemical shifts, the charge distribution within the dianion system is clearly dependent on the actual ion pair state. This condition is demonstrated by varying the solvent and temperature. The polarization of charge towards the pentalene carbons, i.e. the preferred cation positions, is observed on going to tight ion pair conditions. Further support for this model is gained from 7Li NMR. The limitations of the use of 1H and 13C NMR chemical shifts to measure charge distributions within anion systems are discussed.

  DOI：

  10.1002/omr.1270210508
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 palladium on activated charcoal 、 乙醇 作用下， 生成 5,10-dimethyl-4b,5,9b,10-tetrahydro-indeno[2,1-a]indene
  参考文献：
  名称：

  Brand; Schlaeger, Chemische Berichte, 1923, vol. 56, p. 2543

  摘要：

  DOI：