3-phenyl-2,3-dihydro-1H-benzo[d]pyrrolo[1,2-a]imidazole

• 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: 3-phenyl-2,3-dihydro-1H-benzo[d]pyrrolo[1,2-a]imidazole
• 英文别名: 3-phenyl-2,3-dihydro-1H-pyrrolo[1,2-a]benzimidazole
• 化学式: C₁₆H₁₄N₂
• 分子量: 234.301
• InChiKey: KOKIJGMXMWHVBF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  17.8
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  1-苯基-1-环丙羧酸 在 吡啶 、 氯化亚砜 、 氢溴酸 、 三乙胺 、 sodium hydroxide 作用下， 以 甲醇 、 乙醚 、 水 、 溶剂黄146 、 乙腈 为溶剂， 反应 6.25h， 生成 3-phenyl-2,3-dihydro-1H-benzo[d]pyrrolo[1,2-a]imidazole
  参考文献：
  名称：

  Synthesis of 2,3-dihydro-1H-pyrrolo[1,2-a]benzimidazoles via the cyclopropyliminium rearrangement of substituted 2-cyclopropylbenzimidazoles

  摘要：

  2-Cyclopropylbenzimidazole derivatives with various substituents in the small ring undergo cyclopropyliminium rearrangement into 2,3-dihydropyrrolobenzimidazoles substituted at positions 1, 2 or 3. The substrates containing a functional group in position 1 of the cyclopropane ring form products substituted at position 3. Substituents at position 2 in most cases lead to the formation of a mixture of isomers. The reaction can be directed to yield one of the isomers predominantly by varying the solvent polarity. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2013.02.021

文献信息

• Cu-Catalyzed Regioselective C–H Alkylation of Benzimidazoles with Aromatic Alkenes
  作者：Yu-Ting He、Yang-Jie Mao、Hong-Yan Hao、Zhen-Yuan Xu、Shao-Jie Lou、Dan-Qian Xu

  DOI：10.1021/acs.orglett.0c02864

  日期：2020.11.6

  Herein we report a novel Cu-catalyzed regioselective C2–H alkylation of benzimidazoles with aromatic alkenes. The reaction features exclusive regioselectivity and broad substrate scope in the intermolecular alkylation of benzimidazoles with terminal and internal aromatic alkenes, constituting a modular access toward benzimidazole-containing 1,1-di(hetero)aryl alkanes. The intramolecular C2–H alkylation

  在本文中，我们报道了一种新型的Cu催化苯并咪唑与芳香族烯烃的区域选择性C2-H烷基化反应。该反应在苯并咪唑与末端和内部芳族烯烃的分子间烷基化中具有独特的区域选择性和广泛的底物范围，构成了向含苯并咪唑的1,1-二（杂）芳基烷烃的模块化反应。苯并咪唑与芳族烯烃的分子内C2-H烷基化已通过内选择的方式实现。在中等至良好的立体控制下，苯并咪唑的对映选择性C 2烷基化也已实现。
• Microwave-Assisted C−H Bond Activation:  A Rapid Entry into Functionalized Heterocycles
  作者：Kian L. Tan、Anil Vasudevan、Robert G. Bergman、Jonathan A. Ellman、Andrew J. Souers

  DOI：10.1021/ol030050j

  日期：2003.6.1

  [GRAPHICS]Microwave irradiation strongly accelerates the rhodium-catalyzed intramolecular coupling of a benzimidazole C-H bond to pendant alkenes. The cyclic products were formed in moderate to excellent yields with reaction times less than 20 min. Additionally, the use of microwave irradiation allowed the reactions to be performed without any solvent purification and with minimal precautions to exclude air.
• Synthesis of 2,3-dihydro-1H-pyrrolo[1,2-a]benzimidazoles via the cyclopropyliminium rearrangement of substituted 2-cyclopropylbenzimidazoles
  作者：Rinat F. Salikov、Dmitry N. Platonov、Aleksandr E. Frumkin、Dmitry L. Lipilin、Yury V. Tomilov

  DOI：10.1016/j.tet.2013.02.021

  日期：2013.4

  2-Cyclopropylbenzimidazole derivatives with various substituents in the small ring undergo cyclopropyliminium rearrangement into 2,3-dihydropyrrolobenzimidazoles substituted at positions 1, 2 or 3. The substrates containing a functional group in position 1 of the cyclopropane ring form products substituted at position 3. Substituents at position 2 in most cases lead to the formation of a mixture of isomers. The reaction can be directed to yield one of the isomers predominantly by varying the solvent polarity. (C) 2013 Elsevier Ltd. All rights reserved.