2,3-bis(2-pyridyl)pyrido[3,4-b]pyrazine | 171203-47-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶吡嗪类
• 英文名称: 2,3-bis(2-pyridyl)pyrido[3,4-b]pyrazine
• 英文别名: 2,3-di(2-pyridyl)pyrido[3,4-b]pyrazine；2,3-dipyridyl-1,4,6-triazanaphthalene；2,3-dipyridin-2-ylpyrido[3,4-b]pyrazine
• CAS: 171203-47-7
• 化学式: C₁₇H₁₁N₅
• 分子量: 285.308
• InChiKey: LFTCXNVLEIVLGU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  22
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  64.4
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2,3-bis(2-pyridyl)pyrido[3,4-b]pyrazine 、 五羰基氯铼(I) 以 甲醇 为溶剂， 生成 [Re(CO)3Cl]2(2,3-di(2-pyridyl)pyrido[3,4-b]pyrazine)
  参考文献：
  名称：

  Spectroscopic and Electrochemical Studies of Rhenium(I) Bimetallic Complexes with Asymmetric Polypyridyl Bridging Ligands

  摘要：

  The synthesis and electrochemical and spectroscopic properties of a number of binuclear rhenium(I) ligand-bridged complexes are reported. The ligands are as follows: 2,3 -di(2-pyridyl)quinoxaline; 2,3-di(2-pyridyl)-6-methyl quinoxaline; 2,3-di(2-pyridyl)pyrido[2,3-b]pyrazine; 2,3-di(2-pyridyl)pyrido[3,3-b]pyrazine. Complexes with these ligands show different electrochemical and spectroscopic properties. The pyridopyrazine ring systems show longer wavelength MLCT transitions and are easier to reduce. However, spectroelectrochemical studies reveal that the reduction products for this series of complexes are spectroscopically similar. Raman measurements on the reduced species suggest that the redox orbital for the first reduction resides in an orbital that is localized at the dipyridyl section of each ligand. This is surprising in view of the fact that the larger ring system would be expected to localize the charge. It suggests that the rhenium centers modify the nature of the redox MO to a greater extent than the pyridopyrazine ring system.

  DOI：

  10.1021/ic00129a018

文献信息

• Iron-Promoted Nucleophilic Additions to Diimine-Type Ligands:  A Synthetic and Structural Study
  作者：Ana Tesouro Vallina、Helen Stoeckli-Evans、Antonia Neels、Jürgen Ensling、Silvio Decurtins

  DOI：10.1021/ic026079l

  日期：2003.5.1

  trans-[FeL2"Cl(2)] (3), are described. Compounds 2 and 3 are both mononuclear Fe(III) complexes where the metals occupy octahedral positions. In principle, L2 is expected to coordinate to metal ions through its bipyridine-type units to form a five-membered ring; however, this is not the case in compounds 2 and 3. In 2, the ligand coordinates through its pyridines and through the hydroxyl group attached to the pyrazine

  我们在这里报告存在Fe（II）盐时质子亲核试剂与二亚胺型配体的反应性的三个示例。在第一种情况下，配体2,3-二氰基-5,6-双（2-吡啶基）-吡嗪（L1）的一个腈基的铁促进的醇解反应可分离出稳定的E-亚氨基酯，[Fe（L1'）（2）]（CF（3）SO（3））（2）（1），已通过光谱研究（IR，ES-MS，Mossbauer），元素分析和晶体学表征。化合物1由单核八面体配位的Fe（II）配合物组成，其中Fe（II）离子处于低旋态。还研究了铁对不对称配体2,3-双（2-吡啶基）吡啶并[3,4-b]吡嗪（L2）的铁介亲攻击。在这种情况下，两种水合氧化的Fe（III）产物[Fe（L2'）（2）]（ClO（4））（3）的晶体结构。
• Imidazolium cations, processes for their preparation, and uses therefor
  申请人：The Rockefeller University

  公开号：US05874587A1

  公开（公告）日：1999-02-23

  Novel imidazolium compounds of the formula ##STR1## wherein A represents the atomic group necessary to form a heteroaromatic ring, which may be optionally substituted by one or more R substituents selected from the group consisting of aryl, heteroaryl, lower alkyl, hydroxy, halide, or carboxy substitutents; B is an optional substituent which represents the atomic group necessary to form a heteroaromatic ring or a double or triple carbon-nitrogen bond, which may optionally be substituted by one or more R' substituents selected from the group consisting of aryl, heteroaryl, lower alkyl, hydroxy, halide, or carboxy substitutents; C is an optional substituent which represents the atomic group necessary to form an aromatic or heteroaromatic ring, which may optionally be substituted by one or more R"" substituents selected from the group consisting of aryl, heteroaryl, lower alkyl, hydroxy, halide, or carboxy substituents; R" and R'" are each independently a lower alkyl or aryl group, or together with the nitrogen atom to which they are attached, form a heterocyclic ring having from 5 to 7 members, which may optionally contain a sulfur, oxygen, silicon, selenium or an additional nitrogen atom; and X is an anion; are useful in a variety of industrial and medical applications.

  式子为##STR1##的新型咪唑化合物，其中A代表形成杂环芳香环所需的原子基团，该基团可以选择性地被一个或多个R取代，所述R取代基团选自芳基、杂芳基、较低的烷基、羟基、卤素或羧基取代基团；B是一个可选取代基团，代表形成杂环芳香环或双或三重碳氮键所需的原子基团，该基团可以选择性地被一个或多个R' 取代，所述R' 取代基团选自芳基、杂芳基、较低的烷基、羟基、卤素或羧基取代基团；C是一个可选取代基团，代表形成芳香或杂芳香环所需的原子基团，该基团可以选择性地被一个或多个R"" 取代，所述R"" 取代基团选自芳基、杂芳基、较低的烷基、羟基、卤素或羧基取代基团；R"和R'"各自独立地是较低的烷基或芳基基团，或者与它们所连接的氮原子一起形成一个含有5到7个成员的杂环，该杂环可以选择性地包含硫、氧、硅、硒或另一个氮原子；X是一个阴离子。这些化合物在各种工业和医疗应用中有用。
• US5874587A
  申请人：——

  公开号：US5874587A

  公开（公告）日：1999-02-23
• US6087510A
  申请人：——

  公开号：US6087510A

  公开（公告）日：2000-07-11