1,5-bis(pyridine-4-yloxy)pentane | 215361-20-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1,5-bis(pyridine-4-yloxy)pentane
• 英文别名: 1,5-bis(4-pyridinyloxy)pentane；4-(5-Pyridin-4-yloxypentoxy)pyridine
• CAS: 215361-20-9
• 化学式: C₁₅H₁₈N₂O₂
• 分子量: 258.32
• InChiKey: LHEOYQMHUNNNGI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  19
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  44.2
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  1,5-bis(pyridine-4-yloxy)pentane 、 2-[2-[2-[2-[5-[2-[2-[2-[2-[4-[Bis(4-tert-butylphenyl)-(4-propan-2-ylphenyl)methyl]phenoxy]ethoxy]ethoxy]ethoxy]ethoxy]naphthalen-1-yl]oxyethoxy]ethoxy]ethoxy]ethyl 4-methylbenzenesulfonate 在 ammonium hexafluorophosphate 作用下， 以 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 20.0 ℃ 、1000.01 MPa 条件下， 反应 96.0h， 以38%的产率得到
  参考文献：
  名称：

  具有静电屏障的简并[2]轮烷烷†

  摘要：

  一种合成方法，用于制备[2]轮烷（1–5 ·6PF 6），在其哑铃成分的杆部分中掺入双吡啶鎓衍生物和两个1,5-二氧萘（DNP）单元，并由一个环双环包围（已经开发出了百草枯-对苯撑四阳离子（CBPQT 4+）环。由于在[2]轮烷1–5 ·6PF 6的哑铃成分中引入了π电子缺陷型双吡啶鎓单元，因此在这些指示性单元和CBPQT 4+环之间存在库仑电荷排斥[2]。轮烷。因此，CBPQT 4+简并[1]轮烷的双环在1 H NMR时标上显示出两个DNP识别位点之间的缓慢穿梭，这是由于双吡啶鎓单元所形成的静电势垒，如可变温度1 H NMR光谱所证明的。对[2]轮烷1 ·6PF 6和2 ·6PF 6进行的电化学实验表明，[2]轮烷的哑铃组分中的单电子还原联吡啶鎓阳离子是双电子的另外一个识别位点还原的CBPQT 2（ ˙ +）双自由基阳离子环。在适当条件下，简并轮烷中的环成分1 ·6PF 6和2 ·6PF

  DOI：

  10.1039/c0ob00937g
• 作为产物：
  描述：

  1,5-戊二醇 、 4-氯吡啶盐酸盐 在 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 49.0h， 以56%的产率得到1,5-bis(pyridine-4-yloxy)pentane
  参考文献：
  名称：

  Hard Phase Crystallization Directs the Phase Segregation of Hydrogen-Bonded Supramolecular Polymers

  摘要：

  A growing body of work shows that the phase behavior of supramolecular polymers assembled from telechelic building blocks featuring binding motifs at the two termini is quite similar to that of conventional block copolymers. However, it remains unclear how crystallization of the phase formed by the binding motifs, which occurs in many supramolecular polymers, affects the phase morphology of such materials. Here we report a systematic investigation of a series of supramolecular polymers based on poly(ethylene-co-butylene) (PEB) telechelics and the complementary H-bonding pair isophthalic acid-pyridine (IPA-Py). These polymers were designed to feature two blocks that assemble into an amorphous low-glass-transition phase formed by the PEB segments and crystalline domains consisting of the binding motifs. The nature of the latter was systematically varied via the choice of the pyridine employed. The influence of the binding motif on the phase morphology and thereby properties of these supramolecular polymers was investigated by means of thermal analysis, polarized optical microscopy, (dynamic) mechanical analyses, small-angle X-ray scattering, and transmission electron microscopy. In the melted state, all materials assembled into hexagonal phases. However, when cooled below the crystallization temperature of the IPA-Py domains, three different scenarios were observed: breakout crystallization resulting in complex morphologies, retention of the melt morphology, and the formation of a lamellar phase.

  DOI：

  10.1021/acs.macromol.8b02502

文献信息

• Neutral Macrocyclic Boxes Spontaneously Assembled from Osmium Tetraoxide, Olefin, and Pyridyl Ligand
  作者：Kyu-Sung Jeong、Young Lag Cho、Jeong Uk Song、Hong-Young Chang、Moon-Gun Choi

  DOI：10.1021/ja982476c

  日期：1998.10.1