acenaphtho[1,2-b]pyrido[3,4-e]pyrazine | 22724-35-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: acenaphtho[1,2-b]pyrido[3,4-e]pyrazine
• 英文别名: Acenaphtho<1.2-b>pyrido<3.4-e>pyrazin；3,6,10-triazapentacyclo[10.7.1.02,11.04,9.016,20]icosa-1(19),2,4(9),5,7,10,12,14,16(20),17-decaene
• CAS: 22724-35-2
• 化学式: C₁₇H₉N₃
• 分子量: 255.279
• InChiKey: XAHPDBRVGFHFQV-UHFFFAOYSA-N

物化性质

• 沸点：
  520.5±30.0 °C(Predicted)
• 密度：
  1.452±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  20
• 可旋转键数：
  0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  38.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3,4-二氨基吡啶 、 苊醌 在 ziconium(IV) oxychloride octahydrate 作用下， 以 水 为溶剂， 反应 2.5h， 以86%的产率得到acenaphtho[1,2-b]pyrido[3,4-e]pyrazine
  参考文献：
  名称：

  ZrOCl2·8H2O 水溶液：快速一锅法合成吡啶并吡嗪、吡嗪和 2,3-二取代喹喔啉的高效催化剂

  摘要：

  摘要 氧化锆 (IV) 氯化锆被发现是一种快速有效的催化剂，可用于在水中合成吡嗪和 2,3-二取代喹喔啉。多种吡啶并吡嗪和 2,3-二取代喹喔啉衍生物可在绿色条件下通过所需的 1,2-二胺和 1,2-二酮使用催化量的氧化锆 (IV) 在水中进行环缩合而以高产率轻松制备. 活性较低的二胺，例如 2,3-和 3,4-二氨基吡啶参与了该协议，以提供具有良好到优异产率的所需产品。

  DOI：

  10.1016/j.crci.2013.02.018

文献信息

• Zirconium Schiff-Base Complex Modified Mesoporous Silica as an Efficient Catalyst for the Synthesis of Nitrogen Containing Pyrazine Based Heterocycles
  作者：Reihaneh Malakooti、Ghasem Rezanejade Bardajee、Hesamaldin Mahmoudi、Nahale Kakavand

  DOI：10.1007/s10562-013-0999-1

  日期：2013.8

  Zirconium Schiff-base complex modified SBA-15 was synthesized and characterized by powder X-ray diffraction (XRD), BET nitrogen adsorption–desorption methods, IR spectroscopy and thermogravimetric analysis. The XRD and BET analyses show that textural properties of SBA-15 were retained during the grafting procedure. The modified SBA was successfully applied as a heterogeneous catalyst for the synthesis

  合成了锆席夫碱配合物改性的 SBA-15，并通过粉末 X 射线衍射 (XRD)、BET 氮吸附-解吸方法、红外光谱和热重分析进行了表征。XRD 和 BET 分析表明 SBA-15 的结构特性在接枝过程中得以保留。改性的 SBA 作为多相催化剂成功应用于合成含氮吡嗪基杂环库，在水介质中以良好的收率。图文摘要锆席夫碱配合物改性介孔二氧化硅作为合成含氮杂环的有效催化剂吡嗪基杂环
• An iron Schiff base complex loaded mesoporous silica nanoreactor as a catalyst for the synthesis of pyrazine-based heterocycles
  作者：Reihaneh Malakooti、Ghasem Rezanejade Bardajee、Somayyeh Hadizadeh、Hassan Atashin、Hadiseh Khanjari

  DOI：10.1007/s11243-013-9772-y

  日期：2014.2

  An iron Schiff base complex was encapsulated in SBA-15 mesoporous silica to afford a Fe(III)-Schiff base/SBA-15 heterogeneous nanocatalyst for the synthesis of pyridopyrazine and quinoxaline heterocycles. These reactions proceeded in water with excellent yields. The catalyst was characterized by physico-chemical and spectroscopic methods and found to retain the characteristic channel structures of the SBA-15, allowing good accessibility of the encapsulated metal complex.

  一种铁Schiff碱复合物被包裹在SBA-15介孔硅胶中，以得到Fe(III)-Schiff碱/SBA-15异质纳米催化剂，用于合成吡啶并吡嗪和喹嗪烯杂环。这些反应在水中进行，产率极高。催化剂通过物理化学和光谱方法进行了表征，结果发现其保留了SBA-15的特征通道结构，允许被包裹的金属复合物良好的可及性。
• Liquid Crystal Display Operating in a Vertically Aligned Mode
  申请人：Palto Serguei Petrovich

  公开号：US20100118241A1

  公开（公告）日：2010-05-13

  The present invention relates generally to the field of liquid crystal display devices and more particularly to a liquid crystal display device operating in vertically aligned mode (VA-mode) in which liquid crystal molecules having a negative dielectric anisotropy are aligned generally perpendicularly to a panel surface of the liquid crystal display. A liquid crystal display according to the invention comprises a liquid crystal cell ( 6 ) of a vertical alignment mode, at least one polarizer ( 2, 10 ) arranged on each side of the liquid crystal cell, and at least one compensating structure ( 3, 7 ) disposed between the liquid crystal cell and at least one of the polarizers. The polarizers have transmission axes ( 11, 18 ) which are perpendicular to each other.

  本发明涉及液晶显示器件领域，更具体地涉及一种在垂直对准模式（VA模式）下运行的液晶显示器件，其中具有负介电各向异性的液晶分子通常垂直于液晶显示器件的面板表面。本发明的液晶显示器包括垂直对准模式的液晶电池（6），至少一个极化器（2、10）分别设置在液晶电池的两侧，以及至少一个补偿结构（3、7）设置在液晶电池和至少一个极化器之间。极化器具有相互垂直的透过轴（11、18）。
• Polycyclic Organic Compounds, Retardation Layer and Compensation Panel on Their Base
  申请人：Nokel Alexey

  公开号：US20110064892A1

  公开（公告）日：2011-03-17

  This invention relates to polycyclic organic compounds of general structural formula (I): wherein Y is a predominantly planar polycyclic system being at least partially aromatic, W 1 , W 2 , and W 3 are different groups providing solubility in an organic solvent, and sum (n1+n2+n3) is 1, 2, 3, 4, 5, 6, 7 or 8. The polycyclic organic compounds are substantially transparent for electromagnetic radiation in the visible spectral range and are capable of forming supramolecules in the organic solvent.

  本发明涉及一般结构式（I）的多环有机化合物： 其中，Y是一个主要是平面的多环系统，至少部分是芳香性的，W1、W2和W3是不同的基团，提供有机溶剂中的溶解度，而（n1+n2+n3）的总和为1、2、3、4、5、6、7或8。这些多环有机化合物在可见光谱范围内对电磁辐射具有较高的透明度，并能在有机溶剂中形成超分子。
• Efficient solvent-free synthesis of pyridopyrazine and quinoxaline derivatives using copper-DiAmSar complex anchored on SBA-15 as a reusable catalyst
  作者：Marzieh Mohammadi、Ghasem Rezanejade Bardajee、Nader Noroozi Pesyan

  DOI：10.1016/s1872-2067(15)60845-2

  日期：2015.8

  A catalytic system comprising mesoporous silica functionalized with Cu(II)-DiAmSar was synthesized. This was demonstrated as an efficient heterogeneous catalyst for the synthesis of biologically useful pyridopyrazine and quinoxaline heterocycles under solvent-free conditions. X-ray diffraction, transmission electron microscopy, N-2 adsorption-desorption, Fourtier transformation infrared spectroscopy, and thermogravimetric analysis were used to characterize the catalyst and investigate the texture of SBA-15 during the grafting process. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.