4-methyl-2-(2-nitrophenyl)-1H-benzimidazole | 412008-69-6

• 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: 4-methyl-2-(2-nitrophenyl)-1H-benzimidazole
• 英文别名: 4-methyl-2-(2-nitrophenyl)-benzimidazole
• CAS: 412008-69-6
• 化学式: C₁₄H₁₁N₃O₂
• 分子量: 253.26
• InChiKey: PNJZRIGTHCVYEP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  74.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-methyl-2-(2-nitrophenyl)-1H-benzimidazole 在 copper(II) bis(trifluoromethanesulfonate) sodium hydride 作用下， 以 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 36.0h， 生成 6,11-dimethyl-6,7-dihydro-5-oxa-7a,12-diazadibenzo[a,e]azulene
  参考文献：
  名称：

  苯并咪唑活化的硝基的分子内芳香亲核取代。

  摘要：

  各种2-（2-硝基苯基）-1H-苯并咪唑在温和的条件下（DMF，rt）经历高产率的亚硝酸盐分子内S（N）Ar与N-侧链醇盐的结合。当此操作简单的过程在过量的NaH存在下于高温下进行时，最初形成的S（N）Ar产物会通过碱转化为相应的N-乙烯基取代的2-（2-羟苯基）-1H-苯并咪唑-催化的异构化。[反应：看文字]

  DOI：

  10.1021/ol035761w
• 作为产物：
  描述：

  邻硝基苯甲酸 在 草酰氯 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 二氯甲烷 为溶剂， 反应 40.0h， 生成 4-methyl-2-(2-nitrophenyl)-1H-benzimidazole
  参考文献：
  名称：

  苯并咪唑活化的硝基的分子内芳香亲核取代。

  摘要：

  各种2-（2-硝基苯基）-1H-苯并咪唑在温和的条件下（DMF，rt）经历高产率的亚硝酸盐分子内S（N）Ar与N-侧链醇盐的结合。当此操作简单的过程在过量的NaH存在下于高温下进行时，最初形成的S（N）Ar产物会通过碱转化为相应的N-乙烯基取代的2-（2-羟苯基）-1H-苯并咪唑-催化的异构化。[反应：看文字]

  DOI：

  10.1021/ol035761w

文献信息

• Cyclic bis-benzimidazole ligands and metal complexes thereof
  申请人：The Ohio State University

  公开号：US06376664B1

  公开（公告）日：2002-04-23

  Cyclic bis benzimidazole ligands of the following formula are formed by contacting a (2-aminophenyl)-benzimidazole-4-carboxaldehyde ethylene acetal or a (2-nitrophenyl)-benzimidazole-4-benzaldehyde with an acid optionally in the presence of a metal or a metal salt. wherein R1 and R2 may be the same or different and are selected from H, an alkyl having 1 to 10 carbon atoms, a benzyl group, a substituted 2-ethylphenyl group, a carbonyl group, a phenyl substituent, a tosyl group, and an alkylsulfonate group; R3 and R4 may be the same or different and are selected from H, methyl, and ethyl; and R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, and R18 may be the same or different and are selected from H, alkyl having 1 to 10 carbon atoms, fluoride, chloride, bromide, iodide, nitro, amino, a carboxylate, an ester, and a phenyl group.

  以下公式所示的环状双苯并咪唑配体是通过将(2-氨基苯基)-苯并咪唑-4-甲醛乙二醇缩醛或(2-硝基苯基)-苯并咪唑-4-苯甲醛与酸接触，可选地在金属或金属盐的存在下形成。 其中 R1和R2可以相同也可以不同，选择自H、具有1至10个碳原子的烷基、苄基、取代的2-乙基苯基、羰基、苯基取代基、对甲苯磺酰基和烷基磺酸基； R3和R4可以相同也可以不同，选择自H、甲基和乙基；以及 R5、R6、R7、R8、R9、R10、R11、R12、R13、R14、R15、R16、R17和R18可以相同也可以不同，选择自H、具有1至10个碳原子的烷基、氟化物、氯化物、溴化物、碘化物、硝基、氨基、羧酸根、酯和苯基。
• Intermolecular SNAr of the heterocycle-activated nitro and fluoro groups-application in the synthesis of polyazamacrocyclic ligands
  申请人：Chan K. Michael

  公开号：US20050239767A1

  公开（公告）日：2005-10-27

  A new class of tetracylic benzimidazole compounds and derivatives thereof. Additionally provided is a synthetic route for the generation of these and related compounds via Intramolecular Aromatic Nucleophilic Substitution (S N Ar) of the Benzimidazole-Activated Nitro Groups. Additionally, a facile route for the generation of novel phenol species as thermal decomposition of compounds the S N Ar product, which occurs at high temperature resulting in cleavage of the ether linkage and formation of a vinyl group and phenol is provided. Also provided are methods of using the compounds described herein in the treatment HIV.

  一类新的四环苯并咪唑化合物及其衍生物。此外，还提供了一种合成途径，通过苯并咪唑活化的硝基基团的分子内芳香亲核取代（SNAr）生成这些相关化合物。此外，还提供了一种简便的途径，通过化合物SNAr产物的热分解，在高温下发生醚键的断裂和乙烯基团和酚的形成，生成新型酚类物种。还提供了使用本文所述化合物治疗HIV的方法。
• Water-Mediated Synthesis of 2-Substituted Benzimidazoles by Boric Acid and Glycerol
  作者：Chhanda Mukhopadhyay、Pradip Kumar Tapaswi、Ray J. Butcher

  DOI：10.1071/ch08309

  日期：——

  A very simple, mild, and highly efficient green catalyst has been developed for the synthesis of 2-substituted benzimidazoles by treatment of substituted ortho-phenylenediamines and aldehydes in water at 80°C in the presence of boric acid (5 mol-%) and glycerol (0.05 mL). This methodology has been standardized on 55 substrates, and nine new compounds have been synthesized.

  已开发出一种非常简单，温和且高效的绿色催化剂，用于在硼酸（5摩尔％）和80℃的存在下于80°C的水中处理取代的邻苯二胺和醛来合成2-取代的苯并咪唑。甘油（0.05 mL）。该方法已在55种底物上标准化，并合成了9种新化合物。
• Synthesis, α-glucosidase inhibitory, cytotoxicity and docking studies of 2-aryl-7-methylbenzimidazoles
  作者：Muhammad Taha、Nor Hadiani Ismail、Syahrul Imran、Muhammad Helmi Mohamad、Abdul Wadood、Fazal Rahim、Syed Muhammad Saad、Ashfaq ur Rehman、Khalid Mohammed Khan

  DOI：10.1016/j.bioorg.2016.02.004

  日期：2016.4

  Benzimidazole analogs 1-27 were synthesized, characterized by EI-MS and H-1 NMR and their alpha-glucosidase inhibitory activities were found out experimentally. Compound 25, 19, 10 and 20 have best inhibitory activities with IC50 values 5.30 +/- 0.10, 16.10 +/- 0.10, 25.36 +/- 0.14 and 29.75 +/- 0.19 respectively against alpha-glucosidase. Compound 6 and 12 has no inhibitory activity against alpha-glucosidase enzyme among the series. Further studies showed that the compounds are not showing any cytotoxicity effect. The docking studies of the compounds as well as the experimental activities of the compounds correlated well. From the molecular docking studies, it was observed that the top ranked conformation of all the compounds fit well in the active site of the homology model of alpha-glucosidase. (C) 2016 Elsevier Inc. All rights reserved.
• US6376664B1
  申请人：——

  公开号：US6376664B1

  公开（公告）日：2002-04-23