6,7-dimethoxy-4-(piperazin-1-ylmethyl)-2H-chromen-2-one | 1240500-61-1

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 6,7-dimethoxy-4-(piperazin-1-ylmethyl)-2H-chromen-2-one
• CAS: 1240500-61-1
• 化学式: C₁₆H₂₀N₂O₄
• 分子量: 304.346
• InChiKey: QPMQQMLRSWVKKE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.22
• 重原子数：
  22.0
• 可旋转键数：
  4.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  63.94
• 氢给体数：
  1.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  6,7-dimethoxy-4-(piperazin-1-ylmethyl)-2H-chromen-2-one 、 5-羧基荧光素琥珀酰亚胺酯 在 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 12.0h， 生成
  参考文献：
  名称：

  Selective Ratiometric Signaling of Hg²⁺Ions by a Fluorescein-Coumarin Chemodosimeter

  摘要：

  DOI：

  10.5012/bkcs.2010.31.01.246
• 作为产物：
  描述：

  哌嗪 、 4-溴甲基-6,7-二甲氧基香豆素 反应 2.0h， 以82%的产率得到6,7-dimethoxy-4-(piperazin-1-ylmethyl)-2H-chromen-2-one
  参考文献：
  名称：

  Selective Ratiometric Signaling of Hg²⁺Ions by a Fluorescein-Coumarin Chemodosimeter

  摘要：

  DOI：

  10.5012/bkcs.2010.31.01.246

文献信息

• Selective chromogenic and fluorogenic signalling of Hg2+ ions using a fluorescein-coumarin conjugate
  作者：Hee Jung Kim、Ji Eun Park、Myung Gil Choi、Sangdoo Ahn、Suk-Kyu Chang

  DOI：10.1016/j.dyepig.2009.06.009

  日期：2010.1

  A novel, Hg2+-selective chemosensor was prepared via Mannich reaction of dichlorofluorescein with piperazinyl-coumarin moiety. The dichlorofluorescein-coumarin derivative exhibited well-defined Hg(2+)selective chromogenic behavior, indicated by a green to pink colour change in solution, as well as fluorogenic signalling. Significant changes in fluorescence of the dichlorofluorescein subunit were analyzed in reference to the rather constant coumarin emission as an internal standard yielding Hg2+ selectivity. The Hg2+ selectivity of the chemosensor was not appreciably affected by the presence of common coexisting alkali, alkaline earth, and transition metal ions. The detection limit of the dichlorofluorescein-coumarin conjugate for the determination of Hg2+ ions was 4.3 x 10(-6) mol L-1 and the conjugate dye could be used as a chemosensor for the analysis of Hg2+ ions in aqueous environments. (C) 2009 Elsevier Ltd. All rights reserved.