3-(3,4-dichlorophenyl)-5-phenyl-1H-pyrazole | 81394-40-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 3-(3,4-dichlorophenyl)-5-phenyl-1H-pyrazole
• CAS: 81394-40-3
• 化学式: C₁₅H₁₀Cl₂N₂
• 分子量: 289.164
• InChiKey: WPZAPNRSVVVHGJ-UHFFFAOYSA-N

物化性质

• 熔点：
  184-185 °C(Solv: ethanol (64-17-5))
• 沸点：
  493.5±40.0 °C(Predicted)
• 密度：
  1.342±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  28.7
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  3-(3,4-dichlorophenyl)-1-phenylprop-2-en-1-one 在 碘 、 potassium carbonate 、 对甲苯磺酰肼 作用下， 以 乙醇 为溶剂， 反应 2.0h， 以95%的产率得到3-(3,4-dichlorophenyl)-5-phenyl-1H-pyrazole
  参考文献：
  名称：

  碘催化的简便快速取代1 H-吡唑类化合物的方法

  摘要：

  已经证明了通过低至2 mol％I 2催化α，β-不饱和醛/酮与磺酰肼反应合成1 H-吡唑的简便方法。该合成系统具有操作简单，反应条件温和的特点，并具有宽泛的官能团耐受性，可提供良好至优异的收率。

  DOI：

  10.1016/j.tetlet.2016.05.020

文献信息

• Phosphine- and copper-free palladium catalyzed one-pot four-component carbonylation reaction for the synthesis of isoxazoles and pyrazoles
  作者：Nasser Iranpoor、Habib Firouzabadi、Elham Etemadi-Davan

  DOI：10.1016/j.tetlet.2015.11.053

  日期：2016.2

  The palladium catalyzed one-pot synthesis of isoxazoles and pyrazoles from aryl iodides, terminal alkynes, chromium hexacarbonyl and hydroxylamine hydrochloride or aqueous hydrazine solution is described. The Sonogashira carbonylative coupling intermediate was trapped in situ by hydroxylamine hydrochloride or aqueous hydrazine to deliver isoxazoles or pyrazoles, respectively, in high yields. This efficient

  描述了由芳基碘化物，末端炔烃，六羰基铬和羟胺盐酸盐或肼水溶液以钯催化一锅合成异恶唑和吡唑的方法。Sonogashira羰基偶联中间体被羟胺盐酸盐或肼水溶液原位捕获，分别以高收率递送异恶唑或吡唑。这种有效的方法在大气压和中等温度下进行，不需要使用铜，膦配体或气态一氧化碳。
• Temperature-Controlled Divergent Synthesis of Pyrazoles and 1-Tosyl-1H-pyrazoles under Transition-Metal-Catalyst- and Oxidant-Free Conditions
  作者：Kai Wang、Wenjing Xu、Chengcai Xia、Xianting Cao

  DOI：10.3390/molecules29081706

  日期：——

  synthesis of pyrazoles and 1-tosyl-1H-pyrazoles via electrophilic cyclization in the absence of transition-metal catalysts and oxidants was developed. The desired products were obtained in moderate to excellent yields from common starting materials in both ionic liquids and ethanol by simply tuning the reaction temperature. This strategy employs easily synthesized substrates, mild reaction conditions, and

  在此，开发了一种在没有过渡金属催化剂和氧化剂的情况下通过亲电环化不同合成吡唑和1-甲苯磺酰基-1H-吡唑的通用且实用的温度控制方法。通过简单地调节反应温度，可以从离子液体和乙醇中的常见起始材料中以中等至优异的产率获得所需的产物。该策略采用易于合成的底物、温和的反应条件和优异的官能团耐受性。
• An Efficient One-Pot Synthesis of 3,5-Disubstituted 1H-Pyrazoles
  作者：Hua Chen、Lei-Lei Wu、Yi-Cen Ge、Ting He、Lei Zhang、Xing-Li Fu、Hai-Yan Fu、Rui-Xiang Li

  DOI：10.1055/s-0031-1290772

  日期：2012.5

  An efficient, general, one-pot, three-component procedure for the preparation of 3,5-disubstituted 1H-pyrazoles via condensation of substituted aromatic aldehydes, tosylhydrazine and terminal alkynes in toluene is reported. The reaction tolerates a variety of functional groups and sterically hindered substrates to afford the desired pyrazoles in yields of 67-91%.
• One-Pot Synthesis of 3,5-Diphenyl-1H-pyrazoles from Chalcones and Hydrazine under Mechanochemical Ball Milling
  作者：Ze Zhang、Ya-Jun Tan、Chun-Shan Wang、Hao-Hao Wu

  DOI：10.3987/com-13-12867

  日期：——

  A highly efficient and environmentally friendly method has been developed for facile synthesis of 3,5-diphenyl-1H-pyrazoles under mechanochemical ball-milling conditions. The advantages of short reaction time, high efficiency, no separation of in situ generated intermediate, using cheap sodium persulfate as the oxidant, together with very simple work-up procedure, make this one-pot and solvent-free protocol a green and powerful alternative to traditional methods for the synthesis of these kinds of compounds.
• SOLIMAN, E. A.;ESSAWY, A. A.;HAMED, A. A., EGYPT. J. CHEM., 1980, 23, N 2, 75-84
  作者：SOLIMAN, E. A.、ESSAWY, A. A.、HAMED, A. A.

  DOI：——

  日期：——