5-p-methoxyphenyl-8-phenyl-2H-pyrazolo[1,5-c]-1,2,4-triazolo[4,3-a]pyrimidin-3-one | 1338219-30-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 5-p-methoxyphenyl-8-phenyl-2H-pyrazolo[1,5-c]-1,2,4-triazolo[4,3-a]pyrimidin-3-one
• 英文别名: 7-(4-Methoxyphenyl)-11-phenyl-1,3,4,6,12-pentazatricyclo[7.3.0.02,6]dodeca-2,7,9,11-tetraen-5-one
• CAS: 1338219-30-9
• 化学式: C₂₀H₁₅N₅O₂
• 分子量: 357.371
• InChiKey: HKPMQYGGTDRCEH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  27
• 可旋转键数：
  3
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  71.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  [5-(4-methoxyphenyl)-2-phenylpyrazolo[1,5-c]pyrimidin-7-yl]hydrazine 在 双氧水 、 potassium hydroxide 、 sodium hydroxide 作用下， 以 乙醇 、 水 为溶剂， 反应 6.0h， 生成 5-p-methoxyphenyl-8-phenyl-2H-pyrazolo[1,5-c]-1,2,4-triazolo[4,3-a]pyrimidin-3-one
  参考文献：
  名称：

  Annulation and Evaluation of Antibacterial Activity of the New Fused Tricyclic (5,5,6) Ring System of Pyrazolo[1,5-c]-1,2,4-triazolo[4,3-a]pyrimidines

  摘要：

  A series of the new fused 5-aryl-8-phenyl-2H-pyrazolo[1,5-c]-1,2,4-triazolo[4,3-a]pyrimidine-3-thiones 2 were prepared in excellent yields by the reaction of 5-aryl-7-hydrazino-2-phenylpyrazolo[1,5-c]pyrimidines 1 with carbon disulfide in the presence of potassium hydroxide. The pyrazolotriazolopyrimidinethiones gave with certain electrophiles the respective 6-substituted 3-thiones 4-6 rather than the 7-substituted isomeric structure 7. Oxidation of 2 with sodium nitrite or benzenediazonuim chloride afforded the corresponding disulfides 9 or 10 respectively. Moreover, the pyrazolotriazolopyrimidinones 8 were prepared upon reaction with alkaline hydrogen peroxide. All the above compounds were evaluated as antibacterial agents against a variety of microorganisms.

  DOI：

  10.3987/com-11-12240

文献信息

• Annulation and Evaluation of Antibacterial Activity of the New Fused Tricyclic (5,5,6) Ring System of Pyrazolo[1,5-c]-1,2,4-triazolo[4,3-a]pyrimidines
  作者：Kamal F. M. Atta、Mohamed G. Marei、Somia M. Abd El-Magiad、Faten H. A. El-Nashar

  DOI：10.3987/com-11-12240

  日期：——

  A series of the new fused 5-aryl-8-phenyl-2H-pyrazolo[1,5-c]-1,2,4-triazolo[4,3-a]pyrimidine-3-thiones 2 were prepared in excellent yields by the reaction of 5-aryl-7-hydrazino-2-phenylpyrazolo[1,5-c]pyrimidines 1 with carbon disulfide in the presence of potassium hydroxide. The pyrazolotriazolopyrimidinethiones gave with certain electrophiles the respective 6-substituted 3-thiones 4-6 rather than the 7-substituted isomeric structure 7. Oxidation of 2 with sodium nitrite or benzenediazonuim chloride afforded the corresponding disulfides 9 or 10 respectively. Moreover, the pyrazolotriazolopyrimidinones 8 were prepared upon reaction with alkaline hydrogen peroxide. All the above compounds were evaluated as antibacterial agents against a variety of microorganisms.