4-methoxy-1,3-diphenyl-1H-indazole | 1236203-16-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 4-methoxy-1,3-diphenyl-1H-indazole
• 英文别名: 4-Methoxy-1,3-diphenylindazole；4-methoxy-1,3-diphenylindazole
• CAS: 1236203-16-9
• 化学式: C₂₀H₁₆N₂O
• 分子量: 300.36
• InChiKey: MSGZUDCVDLSJJO-UHFFFAOYSA-N

物化性质

• 沸点：
  429.5±27.0 °C(Predicted)
• 密度：
  1.14±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  23
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.05
• 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：

  在 ferric(III) bromide 、 氧气 作用下， 以 甲苯 为溶剂， 反应 16.0h， 以76%的产率得到4-methoxy-1,3-diphenyl-1H-indazole
  参考文献：
  名称：

  Synthesis of 1H-Indazoles and 1H-Pyrazoles via FeBr₃/O₂ Mediated Intramolecular C–H Amination

  摘要：

  A new synthesis of substituted 1H-indazoles and 1H-pyrazoles from arylhydrazones via FeBr3/O-2 mediated C-H activation/C-N bond formation reactions is reported. The corresponding 1,3-diaryl-substituted indazoles and trisubstituted pyrazoles were obtained in moderate to excellent yields under mild conditions.

  DOI：

  10.1021/jo3026862

文献信息

• New Synthesis of 1-Substituted-1<i>H</i>-indazoles via 1,3-Dipolar Cycloaddition of <i>in situ</i> Generated Nitrile Imines and Benzyne
  作者：Christian Spiteri、Steve Keeling、John E. Moses

  DOI：10.1021/ol101150t

  日期：2010.8.6

  A new synthesis of 1-substitued-1H-indazoles via 1,3-dipolar cycloaddition of nitrile imines to benzyne is described. The reaction is completed within 5 min, affording the corresponding N(1)−C(3) disubstituted indazoles in moderate to excellent yields.

  描述了通过腈亚胺的1，3-偶极环加成反应生成苯并炔的1-取代-1 H-吲唑的新合成方法。反应在5分钟内完成，以中等至极好的收率得到相应的N（1）-C（3）二取代的吲唑。
• Synthesis of Substituted 1<i>H</i>-Indazoles from Arynes and Hydrazones
  作者：Pan Li、Chunrui Wu、Jingjing Zhao、Donald C. Rogness、Feng Shi

  DOI：10.1021/jo202598e

  日期：2012.4.6

  The 1H-indazole skeleton can be constructed by a [3 + 2] annulation approach from arynes and hydrazones. Under different reaction conditions, both N-tosylhydrazones and N-aryl/alkylhydrazones can be used to afford a variety of indazoles. The former reaction affords 3-substituted indazoles either via in situ generated diazo compounds or through an annulation/elimination process. The latter reaction leads to 1,3-disubstituted indazoles likely through an annulation/oxidation process. The reactions operate under mild conditions and can accommodate aryl, vinyl, and less satisfactorily, alkyl groups.