5-bromo-2-(4-fluorophenyl)-7-(trifluoromethyl)quinoxaline | 219540-15-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: 5-bromo-2-(4-fluorophenyl)-7-(trifluoromethyl)quinoxaline
• CAS: 219540-15-5
• 化学式: C₁₅H₇BrF₄N₂
• 分子量: 371.132
• InChiKey: LIZRIFCPXQITCP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  22
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  25.8
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  对氟苯甲酰氯 在 copper(II) bis(trifluoromethanesulfonate) 作用下， 以 四氢呋喃 、 乙醚 、 1,2-二氯乙烷 、 乙腈 为溶剂， 20.0~110.0 ℃ 、689.49 kPa 条件下， 反应 0.42h， 生成 5-bromo-2-(4-fluorophenyl)-7-(trifluoromethyl)quinoxaline 、 8-bromo-2-(4-fluorophenyl)-6-(trifluoromethyl)quinoxaline
  参考文献：
  名称：

  Safe and Reliable Synthesis of Diazoketones and Quinoxalines in a Continuous Flow Reactor

  摘要：

  A flow method for the synthesis of aliphatic and aromatic diazoketones from acyl chloride precursors has been developed and used to prepare quinoxalines in a multistep sequence without isolation of the potentially explosive diazoketone. The protocol showcases an efficient in-line purification using supported scavengers with time-saving and safety benefits and in particular a reduction in the operator's exposure to carcinogenic phenylenediamines.

  DOI：

  10.1021/ol1027927

文献信息

• Safe and Reliable Synthesis of Diazoketones and Quinoxalines in a Continuous Flow Reactor
  作者：Laetitia J. Martin、Andreas L. Marzinzik、Steven V. Ley、Ian R. Baxendale

  DOI：10.1021/ol1027927

  日期：2011.1.21

  A flow method for the synthesis of aliphatic and aromatic diazoketones from acyl chloride precursors has been developed and used to prepare quinoxalines in a multistep sequence without isolation of the potentially explosive diazoketone. The protocol showcases an efficient in-line purification using supported scavengers with time-saving and safety benefits and in particular a reduction in the operator's exposure to carcinogenic phenylenediamines.