N-(3,5-dimethylphenyl)benzimidamide | 1187386-92-0

• 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: N-(3,5-dimethylphenyl)benzimidamide
• 英文别名: N'-(3,5-dimethylphenyl)benzenecarboximidamide
• CAS: 1187386-92-0
• 化学式: C₁₅H₁₆N₂
• mdl: MFCD19457337
• 分子量: 224.305
• InChiKey: UJAXELIWNNRXDB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.133
• 拓扑面积：
  38.4
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  N-(3,5-dimethylphenyl)benzimidamide 在 N-氯代丁二酰亚胺 作用下， 以 乙腈 为溶剂， 反应 0.08h， 生成
  参考文献：
  名称：

  N-Chlorosuccinimide/Sodium Hydroxide-Mediated Synthesis of Benzimidazoles from Amidines under Mild Conditions

  摘要：

  A convenient room-temperature one-pot procedure for the preparation of benzimidazoles derivatives from N-arylamidines has been developed. The reaction of N-aryl-N'-chloro amidines, generated by the treatment of N-arylamidines with N-chlorosuccinimide, in presence of sodium hydroxide provides benzimidazoles in good to excellent yields. Nitrogen anion generated in situ from succinimide (by-product of the chlorination step using NCS) and hydroxide anion was found to be highly effective as Bronsted base to promote the cyclization into benzimidazole of N-aryl-N'-chloroamidine.

  DOI：

  10.3987/com-12-s(n)53
• 作为产物：
  描述：

  苯甲腈 、 1-氨基-3,5-二甲苯 生成 N-(3,5-dimethylphenyl)benzimidamide
  参考文献：
  名称：

  苯并咪唑的合成PIDA促进的直接C（SP2） ？N-Arylamidines的H酰亚胺化

  摘要：

  无金属合成从多元化的苯并咪唑的Ñ -arylamidines通过phenyliodine（III）二乙酸酯（PIDA）促进分子内的直接C（SP 2） ħ酰亚胺化得到了发展。反应可在0°C或环境温度下顺利进行，以良好至极好的收率提供所需的产物。也可以实现通常通过类似的Pd或Cu催化方法无法获得的2烷基或2烷基稠合苯并咪唑的合成。

  DOI：

  10.1002/chem.201202271

文献信息

• Unaromatized Tetrahydrobenzimidazole Synthesis from <i>p</i> -Benzoquinone and <i>N</i> -Arylamidines and their Cytotoxic Potential
  作者：Minh Quan Tran、Thanh Binh Nguyen、Wamtinga Richard Sawadogo、Ludmila Ermolenko、Sungmi Song、Pascal Retailleau、Marc Diederich、Ali Al-Mourabit

  DOI：10.1002/ejoc.201801077

  日期：2018.11.15

  New tetrahydrobenzimidazoles were synthesized using a simple method from p‐benzoquinone and N‐arylamidines, and their cytotoxic potential was evaluated. Among them, three are cytotoxic in the µm range.

  用简单的方法由对苯醌和N芳基lam胺合成了新的四氢苯并咪唑，并评估了它们的细胞毒性潜力。其中，三种在µm范围内具有细胞毒性。
• Direct Imidation to Construct 1<i>H</i>-Benzo[<i>d</i>]imidazole through Pd^II-Catalyzed CH Activation Promoted by Thiourea
  作者：Qing Xiao、Wen-Hua Wang、Gang Liu、Fan-Ke Meng、Jia-Hua Chen、Zhen Yang、Zhang-Jie Shi

  DOI：10.1002/chem.200900154

  日期：2009.7.27

  method to construct 1H‐benzo[d]imidazole was developed by means of PdII‐catalyzed intramolecular CH activation starting from easily available N‐phenylbenzimidamide (see scheme). The detailed mechanism studies indicated that a palladacycle monomer or dimer is the key intermediate for this transformation and thiourea was used for the first time to promote the efficiency of CH activation.

  通过Pd II催化的分子内CH活化作用，从容易获得的N －苯基苯甲酰胺开始（见方案），开发了一种新的直接构建1 H苯并[ d ]咪唑的方法。详细的机理研究表明，palladacycle单体或二聚体是该转化的关键中间体，硫脲首次用于提高CH活化效率。
• Oxidative Cyclization Approach to Benzimidazole Libraries
  作者：Eric P. Arnold、Prolay K. Mondal、Daniel C. Schmitt

  DOI：10.1021/acscombsci.9b00189

  日期：2020.1.13

  building blocks, providing limited chemical space coverage. We have developed an amidine formation/oxidative cyclization sequence that enables anilines as a diversity set for benzimidazole C4–C7 SAR generation in parallel format. The amidine annulation was achieved using PIDA or Cu-mediated oxidation to access both N–H and N–alkyl benzimidazoles. This library protocol has now been utilized for analog

  描述了一种从苯胺平行合成苯并咪唑的有效方法。改变苯并咪唑的N1和C2载体的文库方法已经很成熟。但是，C4–C7变体传统上依赖于1,2-二苯胺结构单元，因此化学空间覆盖范围有限。我们已经开发了an形成/氧化环化序列，使苯胺能够作为苯并咪唑C4-C7 SAR平行生成形式的多样性集。通过使用PIDA或Cu介导的氧化作用来获得N和烷基烷基苯并咪唑的idine环化反应。该库协议现已用于四个药物化学项目的模拟生产。另外，通过类似的序列从氨基吡啶合成氮杂苯并咪唑。
• Iodine-Mediated Aryl C−H Amination for the Synthesis of Benzimidazoles and Pyrido[1,2-<i>a</i> ]benzimidazoles
  作者：Zhigang Lv、Jing Liu、Wei Wei、Jie Wu、Wenquan Yu、Junbiao Chang

  DOI：10.1002/adsc.201600455

  日期：2016.9.1

  An intramolecular aryl C−H amination reaction has been achieved using molecular iodine as the sole oxidant for the synthesis of benzimidazole derivatives. The required substrates were readily prepared by addition or coupling of arylamines with the corresponding nitriles or aryl iodides. Iodine‐mediated oxidative cyclization of these substrates in the presence of potassium carbonate (K2CO3) as base

  使用分子碘作为合成苯并咪唑衍生物的唯一氧化剂，已经实现了分子内芳基CH氨基化反应。通过将芳基胺与相应的腈或芳基碘加成或偶联，可以轻松制备所需的底物。在以碳酸钾（K 2 CO 3）为碱的情况下，这些底物的碘介导的氧化环化作用可提供中等至良好收率的相应产物。此处介绍的无过渡金属协议对空气不敏感，操作简单。这种通用且环保的合成方法学广泛适用于各种N芳基取代的am和吡啶2胺，可直接接触1 H来自相应前体的-苯并[ d ]咪唑和吡啶并[1,2- a ]苯并咪唑衍生物。
• Base-Mediated Amination of Alcohols Using Amidines
  作者：Chunyan Zhang、Zehua Li、Jianbin Chen、Shuo Qi、Yanchen Fang、Sheng Zhang、Chaoyu Ren、Fenghong Lu、Zuyu Liang、Shaohua Jiang、Xiaofei Jia、Shuangming Yu、Guoying Zhang

  DOI：10.1021/acs.joc.0c00281

  日期：2020.6.19

  Novel and efficient base-mediated N-alkylation and amidation of amidines with alcohols have been developed, which can be carried out in one-pot reaction conditions, which allows for the synthesis of a wide range of N-alkyl amines and free amides in good to excellent yields with high atom economy. In contrast to borrowing hydrogen/hydrogen autotransfer or oxidative-type N-alkylation reactions, in which

  已经开发出新颖且有效的碱介导的alcohol基N-烷基化和of与醇的酰胺化反应，该反应可以在一锅法反应条件下进行，从而可以很好地合成各种N-烷基胺和游离酰胺。在高原子经济的情况下达到出色的产量。与借用氢/氢自转移或氧化型N-烷基化反应（其中醇通过过渡金属催化的或氧化的有氧脱氢作用而活化）相反，使用am提供了胺的有效替代。这避免了氧化剂或催化剂被配体稳定化的N-烷基化的内在必要性。