1-(p-Methoxyphenyl)benzimidazolon | 21032-57-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 英文名称: 1-(p-Methoxyphenyl)benzimidazolon
• 英文别名: 3-(4-methoxyphenyl)-1H-benzimidazol-2-one
• CAS: 21032-57-5
• 化学式: C₁₄H₁₂N₂O₂
• 分子量: 240.261
• InChiKey: XENRQAHMNIWSSC-UHFFFAOYSA-N

物化性质

• 熔点：
  230 °C(Solv: methanol (67-56-1))
• 密度：
  1.262±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  41.6
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-(p-Methoxyphenyl)benzimidazolon 在 三氯氧磷 作用下， 生成 2-chloro-1-(4-methoxy-phenyl)-1H-benzoimidazole
  参考文献：
  名称：

  Discovery of novel, orally available benzimidazoles as melanin concentrating hormone receptor 1 (MCHR1) antagonists

  摘要：

  Melanin concentrating hormone (MCH) is an important mediator of energy homeostasis and plays role in several disorders such as obesity, stress, depression and anxiety. The synthesis and biological evaluation of novel benzimidazole derivatives as MCHR1 antagonists are described. The in vivo proof of principle for weight loss with a lead compound from this series is exemplified. (c) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2010.07.086
• 作为产物：
  描述：

  tert-butyl 3-(4-methoxyphenyl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-1-carboxylate 在 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以99%的产率得到1-(p-Methoxyphenyl)benzimidazolon
  参考文献：
  名称：

  Benzimidazolone-based serotonin 5-HT1A or 5-HT7R ligands: Synthesis and biological evaluation

  摘要：

  A new group of serotoninergic 5-HT1A or 5-HT7 receptor ligands was identified. These compounds were designed and synthesized on a benzimidazolone scaffold and they enrich the well-known arylpiperazine class of 5-HT ligands. Diverse pharmacomodulations induced a shift in the affinity and selectivity pro. le with final identification of new potent hits. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2009.02.008

文献信息

• Chan-Lam cross-coupling reaction based on the Cu 2 S/TMEDA system
  作者：Kateřina Janíková、Lukáš Jedinák、Tereza Volná、Petr Cankař

  DOI：10.1016/j.tet.2017.12.042

  日期：2018.2

  several pinacol or neopentylglycol boronates indicated further potential of the catalyst. The reaction conditions tolerate the hydroxyl and bromo functional groups. The catalytic system also enables to synthesize the mono-N-substituted anilines from primary aliphatic amines. However, the two model compounds for the secondary and aromatic amines, piperidine and aniline, do not react. Two sterically demanding

  基于Chan-Lam交叉偶联反应，开发了一种基于使用稳定铜（I）源的现成Cu 2 S / TMEDA系统的催化剂。用1 H-苯并[ d ]咪唑-2（3 H）-1，1 H-苯并[ d ]咪唑和1 H-咪唑以及缺电子，富电子和在室温下，在大气氧的存在下，对空间需求量高的硼酸，以中等至极好的收率得到交叉偶联的产物。另外，1 H-苯并[ d]的偶联反应]咪唑与几种频哪醇或新戊二醇硼酸酯表明该催化剂的进一步潜力。反应条件容许羟基和溴官能团。该催化体系还能够由伯脂族胺合成单-N-取代的苯胺。但是，仲胺和芳族胺的两种模型化合物哌啶和苯胺不会反应。两个空间要求的产品与受限Ç N键的旋转，通过将合成的Ñ 1的-arylation ħ -苯并[ d ]咪唑-2（3 H ^） -酮与ö-甲苯磺酸，能够确认由Chan-Lam交叉偶联反应制得的阻转异构体。此外，已经报道了一锅Chan-Lam和Suzuki-Miyaura反应的例子。
• Selenium‐Catalyzed Carbonylative Synthesis of 2‐Benzimidazolones from 2‐Nitroanilines with TFBen as the CO Source
  作者：Xinxin Qi、Rong Zhou、Jin‐Bao Peng、Jun Ying、Xiao‐Feng Wu

  DOI：10.1002/ejoc.201801739

  日期：2019.9

  A selenium‐catalyzed carbonylative reaction for the synthesis of 2‐benzimidazolones from 2‐nitroanilines has been developed. In this strategy, to avoid the usage of toxic CO gas, TFBen (benzene‐1,3,5‐triyl triformate) was used as a solid and stable CO precursor, and a variety of desired 2‐benzimidazolones were produced in moderate to excellent yields.

  已开发了一种硒催化的羰基化反应，用于从2-硝基苯胺合成2-苯并咪唑酮。在此策略中，为避免使用有毒的CO气体，TFBen（苯-1,3,5-三甲酸酯三甲酸酯）被用作固体和稳定的CO前体，并且生产了各种所需的2-苯并咪唑酮，其中中等至极好。产量。
• New triphendioxazine compounds
  申请人：Clariant Finance (BVI) Limited

  公开号：EP0911337A1

  公开（公告）日：1999-04-28

  The triphendioxazine compounds of the general formula (I) in which the rings labelled A in positions 1,2-, 2,3- or 3,4- and 8,9-, 9,10- or 10,11- carry a linearly or angularly fused heterocyclic ring containing at least one nitrogen atom which is substituted or unsubstituted, with the proviso that compounds with only unsubstituted nitrogen atoms and symmetrically disubstituted compounds with C1-2alkyl and unsubstituted phenyl substituents are excluded, are outstanding pigments and are notable over the closest comparable pigments in particular for better migration, light and solvent fastnesses, better heat stability and enhanced colouring power and also better dispersibility and capability to be brought into pigment form. The invention also relates to a process for preparing these triphendioxazine compounds which is characterized by a cyclization step conducted in the presence of manganese dioxide and concentrated sulphuric acid.

  通式(I)的三苯并恶嗪化合物 其中在 1,2-、2,3- 或 3,4- 和 8,9-、9,10- 或 10,11- 位上标有 A 的环含有一个线性或角融合的杂环，该杂环至少含有一个取代或未取代的氮原子，但不包括仅含有未取代氮原子的化合物和含有 C1-2 烷基和未取代苯基取代基的对称二取代化合物、 本发明是一种出色的颜料，与最接近的同类颜料相比，尤其具有更好的迁移性、耐光性和耐溶剂性，更好的热稳定性，更强的着色力，以及更好的分散性和制成颜料的能力。 本发明还涉及一种制备这些三苯并恶嗪化合物的工艺，其特点是在二氧化锰和浓硫酸存在下进行环化步骤。
• Copper-Catalyzed Intramolecular Cyclization to N-Substituted 1,3-Dihydrobenzimidazol-2-ones
  作者：Zhaoguang Li、Hongbin Sun、Hualiang Jiang、Hong Liu

  DOI：10.1021/ol8011106

  日期：2008.8.7

  An efficient and convenient method was developed for preparing N-substituted 1,3-dihydrobenzimidazol-2-ones from N'-substituted N-(2-halophenyl)ureas via a Cul/DBU-catalyzed cyclization in DMSO under microwave heating. High yields were obtained and a variety of functional groups were tolerated under these conditions, including N'-aryl, alkyl, heterocyclic, various N-(substituted 2-halophenyl) and N-(2-iodopyridyl)ureas.
• Process for the preparation of triphendioxazine compounds
  申请人：Clariant Finance (BVI) Limited

  公开号：EP0911337B1

  公开（公告）日：2003-02-26