3-(4,5-二氢-1H-咪唑-2-基)吡啶 | 6302-53-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 中文名称: 3-(4,5-二氢-1H-咪唑-2-基)吡啶
• 中文别名: 3-(4,5-二氢-1H-咪唑基-2-基)吡啶
• 英文名称: 2-(pyridin-3-yl)imidazoline
• 英文别名: 2-(3-Pyridyl)-2-imidazoline；3-(4,5-dihydro-1H-imidazol-2-yl)-pyridine；4,5-dihydro-2-(pyridin-3-yl)-1H-imidazole；2-(4,5-dihydro-1H-imidazol-2-yl)pyridine；2-pyridine-3-yl-4,5-dihydro-1H-imidazole；3-(4,5-dihydro-1H-imidazol-2-yl)pyridine
• CAS: 6302-53-0
• 化学式: C₈H₉N₃
• mdl: MFCD00090296
• 分子量: 147.18
• InChiKey: MBRFGGHJIHPHGK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.2
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• 危险等级：
  IRRITANT
• 海关编码：
  2933990090

反应信息

• 作为反应物：
  描述：

  3-(4,5-二氢-1H-咪唑-2-基)吡啶 在 palladium 10% on activated carbon 、 palladium diacetate 、 caesium carbonate 、 R-(+)-1,1'-联萘-2,2'-双二苯膦 作用下， 以 甲苯 为溶剂， 生成 3-[1-(4-methylsulfonylphenyl)imidazol-2-yl]pyridine
  参考文献：
  名称：

  Pd-Catalyzed N-arylation of 2-imidazolines Provides Convenient Access to Selective Cyclooxygenase-2 Inhibitors

  摘要：

  近年来，环氧化酶作为生物靶点重新出现在炎症以外的治疗领域，这可能需要新的优化线索，特别是适合特定药物开发计划要求的线索。我们开发了一种简便的合成方法，通过钯催化咪唑啉 N-芳基化作为关键步骤，然后进行脱氢反应，合成出含有初级磺酰胺和甲基砜取代基的已知咪唑类选择性 COX-2 抑制剂。

  DOI：

  10.2174/1570178611310040002
• 作为产物：
  描述：

  烟酸 以75%的产率得到
  参考文献：
  名称：

  PISKOV V. B.; KASPEROVICH V. P.; YAKOVLEVA L. M., XIMIYA GETEROTSIKL. SOEDIN., 1976, HO 8, 1112-1118

  摘要：

  DOI：

文献信息

• Synthesis and pharmacological evaluation of imidazoline sites I1 and I2 selective ligands
  作者：Maria Anastassiadou、Saı̈da Danoun、Louis Crane、Geneviève Baziard-Mouysset、Marc Payard、Daniel-Henri Caignard、Marie-Claire Rettori、Pierre Renard

  DOI：10.1016/s0968-0896(00)00280-7

  日期：2001.3

  heterocyclic-imidazoline compounds have been prepared and evaluated in vitro as imidazoline sites (I1 and I2) and alpha-adrenergic (alpha1 and alpha2) receptor ligands. Their pKi values indicate that linkage of the imidazoline moiety at the 2-position with an aromatic substituent dramatically decreases alpha-adrenergic affinity. I1 sites are more accessible by phenyl imidazolines substituted by a methyl or a methoxy

  已经制备了几种系列的2-芳基或杂环-咪唑啉化合物，并在体外评估为咪唑啉位点（I1和I2）和α-肾上腺素能（α1和α2）受体配体。它们的pKi值表明2-位咪唑啉部分与芳族取代基的连接显着降低了α-肾上腺素的亲和力。通过在邻位或间位上被甲基或甲氧基取代的苯基咪唑啉更易于接近I1位点。实际上，2-（2'-甲氧基苯基）-咪唑啉（17）是有史以来最好的I1配体之一（pKi = 8.53，I1 / I2> 3388）。另一方面，在对位中存在甲基时，I 2选择性增加。原始化合物2-（3'-氟-4'-甲苯基）-咪唑啉（31）是I2位点的新有效配体，具有高选择性（pKi = 8。
• Semi-Empirical Computation on Mechanism of Imidazolines and Benzimidazoles Synthesis and Their QSAR Studies
  作者：Swapnali Hazarika、Dilip Konwar、Manas Jyoti Bora

  DOI：10.14233/ajchem.2014.16320

  日期：——

  A green, mild and anaerobic synthesis of imidazolines and benzimidazoles from aldehydes and diamines using I2/KI/K2CO3/H2O system has been investigated by semi-empirical methods. The observed efficient direction of the above synthesis has been modeled from a comparison of the energies of four possible transition states arising from mono and di additions of iodines in the configured molecules. In the reaction I1 B is the most favorable transition state [TS] which is shown to be 20 Kcal/mol by PM3 analyses. The resulting trends of relative transition states energies are in excellent agreement with the experimental observations. Also, the bond order, bond length, heat of formation is in good agreement to the formation of product B. In order to establish the suitable mechanism of the reaction a quantitative structure activity relationship analysis has been made using hydrophobicity as the molecular descriptor. In this analysis the values of refractivity, polarizability, hydration energy, electron affinity, ionization potential and dipole moment of the compounds have been correlated with their hydrophobicity which has been taken as the molecular property.

  通过半经验方法研究了在I2/KI/K2CO3/H2O体系下，使用醛和二胺进行绿色、温和且厌氧的咪唑啉和苯并咪唑合成。通过比较四种可能的过渡状态的能量——源自配置分子中单加和双加碘——来模拟上述合成的高效方向。在反应I1中，B是最佳过渡态[TS]，PM3分析显示其能量为20千卡/摩尔。相对过渡态能量的趋势与实验观察结果非常吻合。此外，键级、键长和生成热都与产物B的生成一致。为了确定反应的适宜机理，使用疏水性作为分子描述符进行了定量结构活性关系分析。在此分析中，化合物折射率、极化率、水合能、电子亲和力、电离势和偶极矩的值与其疏水性相关联，作为分子属性。
• Ruthenium(II) carbonyl complexes containing pyridoxal thiosemicarbazone and trans-bis(triphenylphosphine/arsine): Synthesis, structure and their recyclable catalysis of nitriles to amides and synthesis of imidazolines
  作者：Rajendran Manikandan、Panneerselvam Anitha、Govindan Prakash、Paranthaman Vijayan、Periasamy Viswanathamurthi、Ray Jay Butcher、Jan Grzegorz Malecki

  DOI：10.1016/j.molcata.2014.12.017

  日期：2015.3

  hydrochloride ligands (L1–3) were synthesized and reacted with the ruthenium(II) starting complexes [RuHCl(CO)(EPh3)3] (EP or As). The resulting complexes [Ru(CO)(L1–3)(EPh3)2] (1–6) were characterized by elemental analyses and spectroscopic techniques. The molecular structure of complex 5 was identified by means of single crystal X-ray diffraction analysis. The catalytic activity of the new complexes

  合成了吡咯醛N（4）取代的盐酸替米卡巴zone配体（L 1-3），并与钌（II）起始配合物[RuHCl（CO）（EPh 3）3 ]（EP或As）反应。生成的络合物[Ru（CO）（L 1–3）（EPh 3）2]（1-6）通过元素分析和光谱技术表征。配合物5的分子结构通过单晶X射线衍射分析鉴定。评价了新配合物的催化活性，用于腈在无溶剂条件下的选择性水合为伯酰胺，以及腈与乙二胺的缩合反应。该过程适用于芳族，杂芳族和脂族腈，并能耐受多个取代基。为了寻找在该系列配合物中的最佳催化剂和良好的反应条件，进行了对硫代半脲的取代作用，反应时间，温度，溶剂和催化剂负载量的研究。还提出了两种腈催化反应的可能机理。
• An efficient and one-pot synthesis of imidazolines and benzimidazoles via anaerobic oxidation of carbon–nitrogen bonds in water
  作者：Pranjal Gogoi、Dilip Konwar

  DOI：10.1016/j.tetlet.2005.10.134

  日期：2006.1

  The system, I2/KI/K2CO3/H2O, oxidizes carbon–nitrogen bonds for the synthesis of imidazolines and benzimidazoles from aldehydes and diamines under anaerobic conditions in water at 90 °C with excellent yields. The process is green, mild and inexpensive.

  I 2 / KI / K 2 CO 3 / H 2 O系统在90°C的水中厌氧条件下，通过醛和二胺氧化碳-氮键，以从醛和二胺合成咪唑啉和苯并咪唑，并具有出色的收率。该过程绿色，温和且便宜。
• Synthesis of benzimidazole and quinoxaline derivatives using reusable sulfonated rice husk ash (RHA-SO3H) as a green and efficient solid acid catalyst
  作者：Mahnaz Shamsi-Sani、Farhad Shirini、Masoumeh Abedini、Mohadeseh Seddighi

  DOI：10.1007/s11164-015-2075-5

  日期：2016.2

  In this work, a simple, rapid and efficient method for the preparation of benzimidazoles and quinoxalines from the condensation of o-phenylene diamines with aldehydes and/or 1,2-dicarbonyl compounds in the presence of sulfonated rice husk ash (RHA-SO3H) as an efficient green catalyst is reported. RHA-SO3H can be easily prepared using a readily available organic compound by simple modification of rice husk ash. All reactions are performed under mild reaction conditions with high to excellent yields. The method is applicable to aromatic, unsaturated and hetero aromatic aldehydes. The advantages of this method are short reaction times, milder conditions, easy work-up, solvent-free conditions and catalyst reusability.

  在这项工作中，报告了一种简单、快速和高效的方法，通过将邻苯二胺与醛类和/或1,2-二酮化合物在磺化稻壳灰（RHA-SO3H）作为高效绿色催化剂的存在下进行缩合，制备苯并咪唑和喹喔啉。RHA-SO3H可以通过简单的稻壳灰改性，使用一种易于获得的有机化合物轻松制备。所有反应都在温和的反应条件下进行，产率高至优异。该方法适用于芳香族、非饱和和杂环芳香醛。此方法的优点包括反应时间短、条件温和、操作简便、无溶剂条件和催化剂可重复使用。