1-(trans-4-n-pentylcyclohexyl)-2-(trans-4-n-propylcyclohexyl)-ethene | 173089-44-6

• 分子结构分类: 有机化合物 - 碳氢化合物 - 不饱和烃
• 英文名称: 1-(trans-4-n-pentylcyclohexyl)-2-(trans-4-n-propylcyclohexyl)-ethene
• 英文别名: 1-(trans-4-pentylcyclohexyl)-2-(trans-4-propylcyclohexyl)-ethene
• CAS: 173089-44-6
• 化学式: C₂₂H₄₀
• 分子量: 304.56
• InChiKey: CLRKGOZNRXSBER-NVYQOPEESA-N

反应信息

• 作为反应物：
  描述：

  1-(trans-4-n-pentylcyclohexyl)-2-(trans-4-n-propylcyclohexyl)-ethene 在 四氧化锇 、 二甲基亚砜 、 N-甲基吗啉氧化物 、 三乙胺 、 三氟乙酸酐 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 二氯甲烷 、 水 为溶剂， 反应 36.0h， 生成 1-(4-Pentyl-cyclohexyl)-2-(4-propyl-cyclohexyl)-ethane-1,2-dione
  参考文献：
  名称：

  Nematic Liquid Crystals with a Tetrafluoroethylene Bridge in the Mesogenic Core Structure

  摘要：

  A dramatic increase of the clearing temperatures of liquid crystals based on bis(cyclohcxyl)ethane 1 by 50 to 70 K can be achieved by the perfluorination of the central ethylene link. Conformational analysis indicates that this effect is due to the increased rigidity of the mesogenic core structure and to the suppression of conformers with a bent shape. Materials based on bis(cylohexyl)tetrafluoroethane 2 might play a crucial role as materials for the next generation of active matrix LCDs with reduced power consumption.

  DOI：

  10.1021/ja010024l
• 作为产物：
  描述：

  4-propylcyclohexane-1-carbaldehyde 、 trans-4-n-pentylcyclohexylmethyl triphenyl phosphonium bromide 在 lithium diisopropyl amide 、 盐酸 、 MePhSO₂Na 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 16.0h， 生成 1-(trans-4-n-pentylcyclohexyl)-2-(trans-4-n-propylcyclohexyl)-ethene
  参考文献：
  名称：

  Nematic Liquid Crystals with a Tetrafluoroethylene Bridge in the Mesogenic Core Structure

  摘要：

  A dramatic increase of the clearing temperatures of liquid crystals based on bis(cyclohcxyl)ethane 1 by 50 to 70 K can be achieved by the perfluorination of the central ethylene link. Conformational analysis indicates that this effect is due to the increased rigidity of the mesogenic core structure and to the suppression of conformers with a bent shape. Materials based on bis(cylohexyl)tetrafluoroethane 2 might play a crucial role as materials for the next generation of active matrix LCDs with reduced power consumption.

  DOI：

  10.1021/ja010024l