2-(4-硝基苯基)-4,5-二氢-1H-咪唑 | 61033-70-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2-(4-硝基苯基)-4,5-二氢-1H-咪唑
• 英文名称: 2-(4-nitrophenyl)-4,5-dihydro-1H-imidazoline
• 英文别名: 2-(4-nitrophenyl)imidazoline；2-(4-nitrophenyl)-4,5-dihydro-1H-imidazole
• CAS: 61033-70-3
• 化学式: C₉H₉N₃O₂
• 分子量: 191.189
• InChiKey: NOPHASKLMDZCSJ-UHFFFAOYSA-N

物化性质

• 熔点：
  235-237 °C
• 沸点：
  342.8±44.0 °C(Predicted)
• 密度：
  1.41±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  70.2
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 海关编码：
  2933290090
• 储存条件：
  室温

反应信息

• 作为反应物：
  描述：

  2-(4-硝基苯基)-4,5-二氢-1H-咪唑 在 氧气 、 甲烷 作用下， 以 xylene 为溶剂， 反应 25.0h， 以82%的产率得到2-(4-硝基苯基)-1H-咪唑
  参考文献：
  名称：

  活性炭-O 2体系氧化2-芳基咪唑啉有效合成2-芳基咪唑及其在钯催化的Mizoroki-Heck反应中的应用

  摘要：

  通过活性炭-O 2系统将2-取代的咪唑啉（二氢咪唑）氧化为相应的咪唑。同样，还发现2-芳基咪唑啉和2-芳基咪唑在钯催化的Mizoroki-Heck反应中作为简单的配体起作用。

  DOI：

  10.1016/j.tet.2007.01.014
• 作为产物：
  描述：

  N-(2-氯乙基)-4-硝基-苯甲酰胺 在 五氯化磷 、 乙二胺 作用下， 以 乙腈 、 苯 为溶剂， 反应 4.5h， 生成 2-(4-硝基苯基)-4,5-二氢-1H-咪唑
  参考文献：
  名称：

  REACTIONS OF 2,3-DIARYL-1-METHYL-4,5-DIHYDROIMIDAZOLIUM IODIDES WITH NUCLEOPHILIC REAGENTS

  摘要：

  2,3-Diaryl imidazolium salts, represented by 1 and 2, reacted with 2-ethanolamine or ethylenediamine to produce 2-aryl oxazolines or imidazolines 5-8 respectively. Their hydrolysis resulted in ring-opened ethylenediamine derivatives 9 and 10. The reduction of 1 and 2 produced partially reduced imidazolidines 11, 12 and 11 reacted further with tryptamine to provide 2,3,4,9-tetrahydro-1-phenyl 1H-pyrido[3,4-b]indole, 13. In all these reactions one-carbon units were successfully transferred to the nucleophilic acceptors, which mimic the one-carbon unit transfer function for tetrahydrofolate coenzymes.

  DOI：

  10.1081/scc-120003644

文献信息

• Full Cleavage of C≡C Bond in Electron-Deficient Alkynes via Reaction with Ethylenediamine
  作者：Sergei F. Vasilevsky、Maria P. Davydova、Victor I. Mamatyuk、Nikolay Tsvetkov、Audrey Hughes、Denis S. Baranov、Igor V. Alabugin

  DOI：10.1071/ch17026

  日期：——

  Reaction of 1,2-diaminioethane (ethylenediamine) with electron-deficient alkynes leads to full scission of the C≡C bond even in the absence of a keto group directly attached to the alkyne. This process involves oxidation of one of the alkyne carbons into C2 of a 2-R-4,5-dihydroimidazole with the concomitant reduction of the other carbon to a methyl group. The sequence of Sonogashira coupling with the

  1,2-二氨基乙烷（乙二胺）与缺电子的炔烃反应会导致C≡C键完全断裂，即使没有直接连接到炔烃上的酮基也是如此。该方法涉及将炔烃碳之一氧化成2 - R -4,5-二氢咪唑的C2，同时将另一个碳还原成甲基。这项工作中所述的Sonogashira与乙二胺介导的片段化偶联的序列可用于甲基或4,5-二氢咪唑-2-基部分选择性取代芳基卤化物中的卤素。
• Synthesis of Aldehydes from Carboxylic Acids via 2-Imidazolines
  作者：Zhen Shi、Huan Gu

  DOI：10.1080/00397919708004139

  日期：1997.8

  2-substituted-2-imidazolines as precursors to 2-hydroxy aldehyde, unsaturated aldehyde and a variety of functionalized aldehydes is reported. It provides a novel method for the preparation of aldehydes from carboxylic acids via 2-substituted-2-imidazolines.

  摘要报道了使用容易获得的 2-取代-2-咪唑啉作为 2-羟基醛、不饱和醛和各种功能化醛的前体。它提供了一种通过 2-取代-2-咪唑啉从羧酸制备醛的新方法。
• 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。