2,6-bis((4-chlorophenyl)ethynyl)pyridine | 1428797-69-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,6-bis((4-chlorophenyl)ethynyl)pyridine
• 英文别名: 2,6-Bis[2-(4-chlorophenyl)ethynyl]pyridine；2,6-bis[2-(4-chlorophenyl)ethynyl]pyridine
• CAS: 1428797-69-6
• 化学式: C₂₁H₁₁Cl₂N
• 分子量: 348.231
• InChiKey: RKNBBVWEXUJLBY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.2
• 重原子数：
  24
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  12.9
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2,6-bis((4-chlorophenyl)ethynyl)pyridine 、 三氟甲烷磺酸甲酯 以 二氯甲烷 为溶剂， 以99%的产率得到2,6-Bis[2-(4-chlorophenyl)ethynyl]-1-methylpyridin-1-ium;trifluoromethanesulfonate
  参考文献：
  名称：

  Strategies To Reduce hERG K⁺Channel Blockade. Exploring Heteroaromaticity and Rigidity in Novel Pyridine Analogues of Dofetilide

  摘要：

  Drug-induced blockade of the human ether-a-go-go-related gene K+ channel (hERG) represents one of the major antitarget concerns in pharmaceutical industry. SAR studies of this ion channel have shed light on the structural requirements for hERG interaction but most importantly may reveal drug design principles to reduce hERG affinity. In the present study, a novel library of neutral and positively charged heteroaromatic derivatives of the class III antiarrhythmic agent dofetilide was synthesized and assessed for hERG affinity in radioligand binding and manual patch clamp assays. Structural modifications of the pyridine moiety, side chain, and peripheral aromatic moieties were evaluated, thereby revealing approaches for reducing hERG binding affinity. In particular, we found that the extra rigidity imposed close to the positively charged pyridine moiety can be very efficient in decreasing hERG affinity.

  DOI：

  10.1021/jm301564f
• 作为产物：
  描述：

  2,6-二溴吡啶 、 4-氯苯乙炔 在 N,N-二异丙基乙胺 作用下， 以 水 为溶剂， 反应 5.0h， 以91%的产率得到2,6-bis((4-chlorophenyl)ethynyl)pyridine
  参考文献：
  名称：

  固定在纳米二氧化硅三嗪树枝状聚合物上的 Pd 纳米颗粒：一种可重复使用的催化剂，用于在水中通过 Sonogashira 交叉偶联合成单、二和三炔基芳烃

  摘要：

  发现固定在纳米二氧化硅三嗪树枝状聚合物 (Pdnp-nSTDP) 上的钯纳米粒子是芳基卤化物（碘化物、溴化物和氯化物）与芳族和脂族末端炔烃 Sonogashira 交叉偶联的高效催化剂。在室温下，在仅 0.01 摩尔％的催化剂存在下，该反应最好在作为绿色溶剂的水中进行。在该催化体系的存在下，通过二卤和三卤芳烃与末端炔烃的 Sonogashira 交叉偶联，还实现了具有苯、吡啶或嘧啶中心核的 V 形和星形多炔化分子的有效合成。Pdnp-nSTDP 催化剂很容易回收和重复使用多次，而不会显着降低反应性。

  DOI：

  10.1002/ejoc.201402503

文献信息

• Strategies To Reduce hERG K⁺Channel Blockade. Exploring Heteroaromaticity and Rigidity in Novel Pyridine Analogues of Dofetilide
  作者：João F. S. Carvalho、Julien Louvel、Maarten L. J. Doornbos、Elisabeth Klaasse、Zhiyi Yu、Johannes Brussee、Adriaan P. IJzerman

  DOI：10.1021/jm301564f

  日期：2013.4.11

  Drug-induced blockade of the human ether-a-go-go-related gene K+ channel (hERG) represents one of the major antitarget concerns in pharmaceutical industry. SAR studies of this ion channel have shed light on the structural requirements for hERG interaction but most importantly may reveal drug design principles to reduce hERG affinity. In the present study, a novel library of neutral and positively charged heteroaromatic derivatives of the class III antiarrhythmic agent dofetilide was synthesized and assessed for hERG affinity in radioligand binding and manual patch clamp assays. Structural modifications of the pyridine moiety, side chain, and peripheral aromatic moieties were evaluated, thereby revealing approaches for reducing hERG binding affinity. In particular, we found that the extra rigidity imposed close to the positively charged pyridine moiety can be very efficient in decreasing hERG affinity.
• Pd Nanoparticles Immobilized on Nanosilica Triazine Dendritic Polymer: A Reusable Catalyst for the Synthesis of Mono-, Di-, and Trialkynylaromatics by Sonogashira Cross-Coupling in Water
  作者：Amir Landarani Isfahani、Iraj Mohammadpoor-Baltork、Valiollah Mirkhani、Ahmad R. Khosropour、Majid Moghadam、Shahram Tangestaninejad

  DOI：10.1002/ejoc.201402503

  日期：2014.9

  Palladium nanoparticles immobilized on nano-silica triazine dendritic polymer (Pdnp-nSTDP) was found to be a highly effective catalyst for the Sonogashira cross-coupling of aryl halides (iodides, bromides, and chlorides) with aromatic and aliphatic terminal alkynes. This reaction was best performed in water as a green solvent in the presence of just 0.01 mol-% of the catalyst at room temperature. Efficient

  发现固定在纳米二氧化硅三嗪树枝状聚合物 (Pdnp-nSTDP) 上的钯纳米粒子是芳基卤化物（碘化物、溴化物和氯化物）与芳族和脂族末端炔烃 Sonogashira 交叉偶联的高效催化剂。在室温下，在仅 0.01 摩尔％的催化剂存在下，该反应最好在作为绿色溶剂的水中进行。在该催化体系的存在下，通过二卤和三卤芳烃与末端炔烃的 Sonogashira 交叉偶联，还实现了具有苯、吡啶或嘧啶中心核的 V 形和星形多炔化分子的有效合成。Pdnp-nSTDP 催化剂很容易回收和重复使用多次，而不会显着降低反应性。