1-benzyl-5-methoxy-2-phenyl-1H-benzo[d]imidazole | 1235980-87-6

• 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: 1-benzyl-5-methoxy-2-phenyl-1H-benzo[d]imidazole
• 英文别名: 1-Benzyl-5-methoxy-2-phenylbenzimidazole
• CAS: 1235980-87-6
• 化学式: C₂₁H₁₈N₂O
• 分子量: 314.387
• InChiKey: QNKSHFVJYHBCOL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  24
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  27
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  1-benzyl-2-benzylidene-1-(4-methoxyphenyl)hydrazine 在 copper(II) bis(trifluoromethanesulfonate) 作用下， 以 甲苯 为溶剂， 反应 5.0h， 以70%的产率得到1-benzyl-5-methoxy-2-phenyl-1H-benzo[d]imidazole
  参考文献：
  名称：

  Copper-Mediated Synthesis of Substituted 2-Aryl-N-benzylbenzimidazoles and 2-Arylbenzoxazoles via C–H Functionalization/C–N/C–O Bond Formation

  摘要：

  An efficient method for the transformation of N-benzyl bisarylhydrazones and bisaryloxime ethers to functionalized 2-aryl-N-benzylbenzimidazoles and 2-arylbenzoxazoles is described. The protocol involves a copper(II)-mediated cascade C-H functionalization/C-N/C-O bond formation under neutral conditions. Substrates having either electron-donating or -withdrawing substituents undergo the cyclization to afford the target heterocycles at moderate temperature.

  DOI：

  10.1021/jo2005632

文献信息

• Nickel catalyzed sustainable synthesis of benzazoles and purines <i>via</i> acceptorless dehydrogenative coupling and borrowing hydrogen approach
  作者：Gargi Chakraborty、Rakesh Mondal、Amit Kumar Guin、Nanda D. Paul

  DOI：10.1039/d1ob01154e

  日期：——

  benzoxazole via acceptorless dehydrogenative functionalization of alcohols. Using a bench stable, easy to prepare, and inexpensive Ni(II)-catalyst, [Ni(MeTAA)] (1a), featuring a tetraaza macrocyclic ligand (tetramethyltetraaza[14]annulene (MeTAA)), a wide variety of polysubstituted benzimidazole, purine, benzothiazole, and benzoxazole derivatives were prepared via dehydrogenative coupling of alcohols with

  在此，我们报告了通过醇的无受体脱氢官能化，镍催化可持续合成一些选定的五元稠合氮杂环，如苯并咪唑、嘌呤、苯并噻唑和苯并恶唑。使用稳定、易于制备和廉价的 Ni( II )-催化剂 [Ni(MeTAA)] ( 1a )，具有四氮杂大环配体（四甲基四氮杂[14]环烯 (MeTAA)），多种多取代苯并咪唑、嘌呤、苯并噻唑和苯并恶唑衍生物分别通过醇与 1,2-二氨基苯、4,5-二氨基嘧啶、2-氨基噻酚和 2-氨基苯酚的脱氢偶联制备。还制备了多种苯并咪唑一种借氢方法，涉及醇作为氢供体和 2-硝基苯胺作为氢受体。进行了一些对照实验以了解反应机理。
• Nitroarenes as versatile building blocks for the synthesis of unsymmetrical urea derivatives and N-Arylmethyl-2-substituted benzimidazoles
  作者：Paula A. Rodríguez-Huerto、Diana Peña-Solórzano、Cristian Ochoa-Puentes

  DOI：10.1007/s11696-021-01785-7

  日期：2021.12

  contribution, a fast and simple method for the synthesis of unsymmetrical urea derivatives and N-arylmethyl-2-substituted benzimidazoles was developed starting from nitroarenes. The reaction of nitroarenes and phenyl isocyanate or phenyl isothiocyanate in tin (II) chloride dihydrate/choline chloride eutectic mixture afforded the expected urea and thiourea derivatives, while the reaction of different aldehydes

  在这项贡献中，从硝基芳烃开始，开发了一种用于合成不对称脲衍生物和 N-芳甲基-2-取代苯并咪唑的快速简单的方法。硝基芳烃与异氰酸苯酯或异硫氰酸苯酯在二水合氯化锡 (II)/氯化胆碱低共熔混合物中的反应提供了预期的脲和硫脲衍生物，而不同醛与邻硝基苯胺或 4-甲氧基-2-硝基苯胺的反应显示出与 2-取代的类似物相比，获得 N-芳基甲基-2-取代的苯并咪唑具有显着的高偏好。该方法提供了一种直接的替代方法，可以通过操作简单的实验装置以短的反应时间以良好至优异的收率获得目标化合物。一系列不对称的脲和硫脲衍生物以及1，
• Palladium-Catalyzed Synthesis of Benzimidazoles and Quinazolinones from Common Precursors
  作者：Jessie E. R. Sadig、Radleigh Foster、Florian Wakenhut、Michael C. Willis

  DOI：10.1021/jo301805d

  日期：2012.11.2

  utilized as complementary precursors for the synthesis of important heterocycles. The synthesis of N-substituted benzimidazoles was possible from the palladium-catalyzed reaction of both classes of substrate with a variety of N-nucleophiles. The use of the imidate precursor for the synthesis of N-substituted quinazolinones by incorporation of a palladium-catalyzed aminocarbonylation reaction has also been

  N-（邻卤代苯基）亚氨基酰氯和相应的酰亚胺化物易于制备，并且可用作合成重要杂环的互补前体。N-取代的苯并咪唑的合成可能是由两类底物与多种N-亲核试剂的钯催化反应所致。还已经证明了亚氨酸酯前体通过掺入钯催化的氨基羰基化反应用于合成N-取代的喹唑啉酮的用途。两种方法都可以耐受各种官能团。
• A one-pot synthesis of bisarylhydrazones by Cu(I)-catalyzed aerobic oxidation
  作者：Jiu-Rong Hu、Wan-Jia Zhang、Da-Gui Zheng

  DOI：10.1016/j.tet.2013.08.073

  日期：2013.11

  An efficient Cu(I)-catalyzed one-pot synthesis of N-substituted (or NH) bisarylhydrazones is reported. A further cyclization reaction could occur towards the synthesis of benzimidazoles or triazoles with elevated temperature. A plausible alkylation-oxidation-alkylation mechanism is proposed based on experimental results and literature. (C) 2013 Elsevier Ltd. All rights reserved.
• Copper-Mediated Synthesis of Substituted 2-Aryl-<i>N</i>-benzylbenzimidazoles and 2-Arylbenzoxazoles via C–H Functionalization/C–N/C–O Bond Formation
  作者：Murali Mohan Guru、Md Ashif Ali、Tharmalingam Punniyamurthy

  DOI：10.1021/jo2005632

  日期：2011.7.1

  An efficient method for the transformation of N-benzyl bisarylhydrazones and bisaryloxime ethers to functionalized 2-aryl-N-benzylbenzimidazoles and 2-arylbenzoxazoles is described. The protocol involves a copper(II)-mediated cascade C-H functionalization/C-N/C-O bond formation under neutral conditions. Substrates having either electron-donating or -withdrawing substituents undergo the cyclization to afford the target heterocycles at moderate temperature.