2-(3,4-dimethoxyphenyl)imidazoline | 192988-59-3

• 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-(3,4-dimethoxyphenyl)imidazoline
• 英文别名: 2-(3,4-dimethoxyphenyl)-4,5-dihydro-1H-imidazole；2-(3,4-Dimethoxy-phenyl)-4,5-dihydro-1H-imidazol
• CAS: 192988-59-3
• 化学式: C₁₁H₁₄N₂O₂
• 分子量: 206.244
• InChiKey: NXHHUAOYFMCRFK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  42.8
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-(3,4-dimethoxyphenyl)imidazoline 在 碘苯二乙酸 、 potassium carbonate 作用下， 以 二甲基亚砜 为溶剂， 反应 24.0h， 以56%的产率得到2-(3,4-dimethoxyphenyl)-1H-imidazole
  参考文献：
  名称：

  基于咪唑基序的T形离子液晶：探索C-2咪唑碳原子的取代

  摘要：

  在本文中，描述了所谓的刚性核T形咪唑鎓离子液晶的第一个例子，其中咪唑鎓环的C-2原子被装饰有一个或两个烷氧基链的芳基部分取代。烷氧基链的长度从6到18个碳原子不等（n= 6、10、14-18）。带有一条长烷氧基链的化合物仅显示近晶A相，而包含两条烷氧基链的盐则表现出近晶A相，多连续立方相和六方柱状相，这由偏光光学显微镜，差示扫描量热法和X射线X射线证明衍射。提出了用于中间相中分子自组装的结构模型。发现咪唑鎓头基和碘化物抗衡离子在六方柱状相的柱的中央部分采取特殊的取向。1,3-二甲基-2- [3,4-双（十五烷氧基）苯基]咪唑碘鎓盐显示的对映立方相具有多连续Pm m结构体。据我们所知，这是这种对称的热致立方中间相的第一个例子。

  DOI：

  10.1002/chem.201001921
• 作为产物：
  描述：

  N-(3,4-dimethoxybenzylidene)ethane-1,2-diamine 在 N-溴代丁二酰亚胺(NBS) 作用下， 以 水 为溶剂， 反应 0.25h， 生成 2-(3,4-dimethoxyphenyl)imidazoline
  参考文献：
  名称：

  Ultrasound promoted synthesis of 2-imidazolines in water: A greener approach toward monoamine oxidase inhibitors

  摘要：

  A series of sixteen 2-substituted-2-imidazolines (where the substituent R = Ph, Me-4-Ph; MeO-4-Ph; (MeO) 2-3,4-Ph; (MeO)(3)-3,4,5-Ph; Ph-4-O-C(O)-Ph; Cl-4-Ph; Cl-2-Ph; Cl-2-2,4-Ph; NO2-4-Ph; NO2-3-Ph; Naphth-2-yl; Fur-2-yl; Benzofur-2-yl; Pyridin-2-yl; Quinolin-2-yl) has been synthesized from the reaction of the substituted-aldehydes and ethylenediamine by ultrasound irradiation with NBS in an aqueous medium in high yields (80-99%). The 2-imidazoline ability to inhibit the activity of the A and B isoforms of monoamine oxidase (MAO) was investigated and some of them showed potent and selective MAO inhibitory activity especially for the MAO-B isoform and could become promising candidates for future development. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2008.03.001

文献信息

• 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。
• 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。
• Fragmentation of Trifluoromethylated Alkenes and Acetylenes by <i>N</i>,<i>N</i>-Binucleophiles. Synthesis of Imidazolines or Imidazolidines (Oxazolidines) Controlled by Substituent
  作者：Valentine G. Nenajdenko、Vasiliy M. Muzalevskiy、Aleksey V. Shastin、Elizabeth S. Balenkova、Evgeniy V. Kondrashov、Igor A. Ushakov、Alexander Yu. Rulev

  DOI：10.1021/jo101107t

  日期：2010.8.20

  The reaction of β-halogeno-β-polyfluoromethylstyrenes with N,N- or N,O-binucleophiles leads to unexpected fragmentation products (imidazolines) or to heterocyclization giving CF3-substituted imidazolidines (N,N-) and oxazolidines (N,O-) depending on aryl substituent. The scope and the reaction mechanism are discussed.

  β-卤代-β-多氟甲基苯乙烯与N，N-或N，O-双亲核试剂的反应会导致意外的裂解产物（咪唑啉）或杂环化反应，生成CF 3取代的咪唑烷（N，N-）和恶唑烷（N，O -）取决于芳基取代基。讨论了反应的范围和机理。
• Polyvinyl chloride plastisol composition
  申请人：ASAHI DENKA KOGYO KABUSHIKI KAISHA

  公开号：EP0331507A1

  公开（公告）日：1989-09-06

  The present invention provides a polyvinyl chloride plastisol composition characterized by containing a specified epoxy resin, a blocked isocyanate and, if necessary, a latent curing agent for an epoxy resin as tackifiers. This plastisol composition is excellent in storage stability and can strongly adhere to various metals and various undercoats of metals (such as electro-deposit) by baking even at a relatively low temperature to give a coating which is free from blowing and exhibits excellent adhesion after the immersion in hot water or the heating. Therefore, the composition is useful as a body sealer or undercoat for an automotive body.

  本发明提供了一种聚氯乙烯增塑溶胶组合物，其特点是含有特定的环氧树脂、封端异氰酸酯，必要时还含有环氧树脂的潜在固化剂作为增粘剂。这种增塑溶胶组合物具有出色的储存稳定性，即使在相对较低的温度下烘烤，也能牢固地附着在各种金属和金属的各种底涂层（如电沉积层）上，使涂层在热水中浸泡或加热后不起泡，并表现出出色的附着力。因此，该组合物可用作汽车车身的密封剂或底漆。