2,5-ditosylpyrazine | 1428548-93-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,5-ditosylpyrazine
• 英文别名: 2,5-Bis-(4-methylphenyl)sulfonylpyrazine；2,5-bis-(4-methylphenyl)sulfonylpyrazine
• CAS: 1428548-93-9
• 化学式: C₁₈H₁₆N₂O₄S₂
• 分子量: 388.468
• InChiKey: HLANBZCNPFOGFB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  26
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  111
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3-羟基吡啶 、 2,5-ditosylpyrazine 在 potassium carbonate 作用下， 以 乙腈 为溶剂， 以93%的产率得到2-(pyridin-3-yloxy)-5-tosylpyrazine
  参考文献：
  名称：

  2,5-Bis-(sulfonyl)pyrazines as unprecedented building blocks and their SNAr reactions

  摘要：

  Previously unknown 2,5-bis-sulfonylpyrazines are prepared and their SNAr reactions are investigated. When 2 equiv of thiols are employed, the corresponding bis-thiopyrazines are obtained exclusively. However, phenols or alkoxides gave rise to only the corresponding mono-substituted aryloxy- or alkoxy-sulfonylpyrazines in excellent yields. A carbon nucleophile prepared by treating malonate with NaH also produced the corresponding mono-sulfonylpyrazines. Aliphatic amines and anilines only provided the mono-anilino-sulfonylpyrazines in poor to moderate yields. (c) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2013.01.106
• 作为产物：
  描述：

  4-甲苯硫酚 在 双氧水 、 potassium carbonate 作用下， 以 溶剂黄146 、 乙腈 为溶剂， 反应 6.0h， 生成 2,5-ditosylpyrazine
  参考文献：
  名称：

  2,5-Bis-(sulfonyl)pyrazines as unprecedented building blocks and their SNAr reactions

  摘要：

  Previously unknown 2,5-bis-sulfonylpyrazines are prepared and their SNAr reactions are investigated. When 2 equiv of thiols are employed, the corresponding bis-thiopyrazines are obtained exclusively. However, phenols or alkoxides gave rise to only the corresponding mono-substituted aryloxy- or alkoxy-sulfonylpyrazines in excellent yields. A carbon nucleophile prepared by treating malonate with NaH also produced the corresponding mono-sulfonylpyrazines. Aliphatic amines and anilines only provided the mono-anilino-sulfonylpyrazines in poor to moderate yields. (c) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2013.01.106

文献信息

• 2,5-Bis-(sulfonyl)pyrazines as unprecedented building blocks and their SNAr reactions
  作者：Jie Jack Li、Wei Meng、Shung Wu、Yong-Jin Wu、Jason Guernon、Martin P. Allen、Michael M. Miller、Peter T. Cheng、Bang-chi Chen

  DOI：10.1016/j.tetlet.2013.01.106

  日期：2013.4

  Previously unknown 2,5-bis-sulfonylpyrazines are prepared and their SNAr reactions are investigated. When 2 equiv of thiols are employed, the corresponding bis-thiopyrazines are obtained exclusively. However, phenols or alkoxides gave rise to only the corresponding mono-substituted aryloxy- or alkoxy-sulfonylpyrazines in excellent yields. A carbon nucleophile prepared by treating malonate with NaH also produced the corresponding mono-sulfonylpyrazines. Aliphatic amines and anilines only provided the mono-anilino-sulfonylpyrazines in poor to moderate yields. (c) 2013 Elsevier Ltd. All rights reserved.