| 1262723-51-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 菲及其衍生物
• CAS: 1262723-51-2
• 化学式: C₄₈H₇₁IO₅
• 分子量: 854.993
• InChiKey: GDSIEJWSZKIATC-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  、 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三乙胺 、 三苯基膦 作用下， 以 四氢呋喃 为溶剂， 反应 36.0h， 以30%的产率得到2-(3,7-Dimethyloctoxy)-3-[2-[3-(3,7-dimethyloctoxy)-6,7,10,11-tetrapentoxytriphenylen-2-yl]ethynyl]-6,7,10,11-tetrapentoxytriphenylene
  参考文献：
  名称：

  π-Conjugated Triphenylene Twins Exhibiting Polymesomorphism Including the Nematic Phase

  摘要：

  Novel discotic liquid crystals possessing two triphenylene (TP) mesogenic cores covalently connected via a rigid spacer, i.e., -conjugated ethynyl- or butadiynyl-bridge, (TP twins) are reported. The TP twins are categorized by the lengths of -substituted chains (R2 and R3) and peripheral alkoxy or branched aliphatic chains (R1 and R4). Three varieties of TP twins are prepared: A) TP twins having identical -substituted and peripheral chains (R1=R2=R3=R4), B) equivalent TP entities having a -substituted chain (R2=R3) and peripheral chains (R1=R4) of different length from the substitution, and C) TP twins with different TP entities having the same -substituted and peripheral alkoxy chains (R1=R2, R3=R4). The phase behavior is characterized by differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and X-ray diffraction (XRD) studies. These TP twins exhibit a discotic nematic (N) and/or columnar rectangular (Colr) mesophases over a wide temperature range. We found that the relative length of rigid spacer and -substituted alkoxy chains play an important role in the creation of the molecular self-assembly and formation of the mesophases. To the best of our knowledge, this is the first report of TP twins exhibiting polymesomorphism.

  DOI：

  10.1080/15421400902987677
• 作为产物：
  描述：

  、 4-(3,4-二戊氧基苯基)-1,2-二戊氧基苯 在 五氯化钼 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 生成
  参考文献：
  名称：

  π-Conjugated Triphenylene Twins Exhibiting Polymesomorphism Including the Nematic Phase

  摘要：

  Novel discotic liquid crystals possessing two triphenylene (TP) mesogenic cores covalently connected via a rigid spacer, i.e., -conjugated ethynyl- or butadiynyl-bridge, (TP twins) are reported. The TP twins are categorized by the lengths of -substituted chains (R2 and R3) and peripheral alkoxy or branched aliphatic chains (R1 and R4). Three varieties of TP twins are prepared: A) TP twins having identical -substituted and peripheral chains (R1=R2=R3=R4), B) equivalent TP entities having a -substituted chain (R2=R3) and peripheral chains (R1=R4) of different length from the substitution, and C) TP twins with different TP entities having the same -substituted and peripheral alkoxy chains (R1=R2, R3=R4). The phase behavior is characterized by differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and X-ray diffraction (XRD) studies. These TP twins exhibit a discotic nematic (N) and/or columnar rectangular (Colr) mesophases over a wide temperature range. We found that the relative length of rigid spacer and -substituted alkoxy chains play an important role in the creation of the molecular self-assembly and formation of the mesophases. To the best of our knowledge, this is the first report of TP twins exhibiting polymesomorphism.

  DOI：

  10.1080/15421400902987677