3,4-bis(4-methoxyphenyl)-1-methyl-5-(p-tolyl)-1H-pyrazole | 1314594-57-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 3,4-bis(4-methoxyphenyl)-1-methyl-5-(p-tolyl)-1H-pyrazole
• CAS: 1314594-57-4
• 化学式: C₂₅H₂₄N₂O₂
• 分子量: 384.478
• InChiKey: YLELQUCBPIFDLA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.75
• 重原子数：
  29.0
• 可旋转键数：
  5.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.16
• 拓扑面积：
  36.28
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  3,4-dibromo-1-methyl-5-(p-tolyl)-1H-pyrazole 、 4-甲氧基苯硼酸 在 2-双环己基膦-2',6'-二甲氧基联苯 、 palladium diacetate 、 potassium carbonate 作用下， 以 1,4-二氧六环 、 水 为溶剂， 反应 6.5h， 以84%的产率得到3,4-bis(4-methoxyphenyl)-1-methyl-5-(p-tolyl)-1H-pyrazole
  参考文献：
  名称：

  Suzuki–Miyaura reactions of N-protected tribromopyrazoles. Efficient and site-selective synthesis of 3,4,5-triaryl-pyrazoles, 3,5-diaryl-4-bromopyrazoles and 5-aryl-3,4-dibromopyrazoles

  摘要：

  Suzuki-Miyaura reactions of N-protected tribromopyrazoles were studied. The reactions proceed with excellent site-selectivity. The first attack occurs at position 5, while the second and third attack occur at positions 3 and 4, respectively. A variety of 3,4,5-triaryl-pyrazoles, 3,5-diaryl-4-bromopyrazoles, and 5-aryl-3,4-dibromopyrazoles were efficiently prepared. The products are not readily available by other methods. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.05.036

文献信息

• Suzuki–Miyaura reactions of N-protected tribromopyrazoles. Efficient and site-selective synthesis of 3,4,5-triaryl-pyrazoles, 3,5-diaryl-4-bromopyrazoles and 5-aryl-3,4-dibromopyrazoles
  作者：Rasheed Ahmad Khera、Asad Ali、Hummera Rafique、Munawar Hussain、Jovana Tatar、Aamer Saeed、Alexander Villinger、Peter Langer

  DOI：10.1016/j.tet.2011.05.036

  日期：2011.7

  Suzuki-Miyaura reactions of N-protected tribromopyrazoles were studied. The reactions proceed with excellent site-selectivity. The first attack occurs at position 5, while the second and third attack occur at positions 3 and 4, respectively. A variety of 3,4,5-triaryl-pyrazoles, 3,5-diaryl-4-bromopyrazoles, and 5-aryl-3,4-dibromopyrazoles were efficiently prepared. The products are not readily available by other methods. (C) 2011 Elsevier Ltd. All rights reserved.