6-methoxycoumarin-3-N-methylcarboxamide

• 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-methoxycoumarin-3-N-methylcarboxamide
• 英文别名: 6-methoxy-N-methyl-2-oxo-2H-chromene-3-carboxamide；6-methoxy-N-methyl-2-oxochromene-3-carboxamide
• 化学式: C₁₂H₁₁NO₄
• 分子量: 233.224
• InChiKey: AXVPDXOFCSMKLU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  ethyl 6-methoxycoumarin-3-carboxylate 在 盐酸 、 4-二甲氨基吡啶 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 二氯甲烷 、 溶剂黄146 为溶剂， 反应 3.0h， 生成 6-methoxycoumarin-3-N-methylcarboxamide
  参考文献：
  名称：

  Improvement of Fluorescence Characteristics of Coumarins: Syntheses and Fluorescence Properties of 6-Methoxycoumarin and Benzocoumarin Derivatives as Novel Fluorophores Emitting in the Longer Wavelength Region and Their Application to Analytical Reagents

  摘要：

  为了改善香豆素的荧光特性，特别是发射波长，合成了多种3取代-6-甲氧基香豆素衍生物，随后又合成了苯香豆素衍生物，期待通过延长共轭体系实现向长波长区域的转移。采用光谱法在乙腈中研究了它们的荧光特性，并从基态和激发态中推送和拉动取代基之间的分子内电荷转移（ICT）角度进行了评估。在这些衍生物中，苯香豆素衍生物特别在540 nm附近的长波长范围内具有显著的荧光，斯托克斯位移超过10000 cm−1。利用这些荧光基团，初步制备了一些新型的荧光衍生化试剂用于羧酸、醇、酚和胺，发现其衍生化产物在长波长区域也具有显著的荧光和较大的斯托克斯位移。

  DOI：

  10.1248/cpb.53.750

文献信息

• COMPOUNDS FOR MODULATING RNA BINDING PROTEINS AND USES THEREFOR
  申请人：RYDER Sean

  公开号：US20110065704A1

  公开（公告）日：2011-03-17

  The invention relates to compositions and methods for inhibiting RNA binding proteins (e.g., MEX-3, MEX-5 and POS-1), as well as methods for treating and preventing disorders associated with parasitic infections and inflammatory disorders.
• US8377639B2
  申请人：——

  公开号：US8377639B2

  公开（公告）日：2013-02-19
• US8962244B2
  申请人：——

  公开号：US8962244B2

  公开（公告）日：2015-02-24
• Improvement of Fluorescence Characteristics of Coumarins: Syntheses and Fluorescence Properties of 6-Methoxycoumarin and Benzocoumarin Derivatives as Novel Fluorophores Emitting in the Longer Wavelength Region and Their Application to Analytical Reagents
  作者：Chiyomi Murata、Toshinobu Masuda、Yasuko Kamochi、Kenichiro Todoroki、Hideyuki Yoshida、Hitoshi Nohta、Masatoshi Yamaguchi、Akira Takadate

  DOI：10.1248/cpb.53.750

  日期：——

  To improve the fluorescence characteristics, especially emission wavelength, of coumarins, various 3-substituted-6-methoxycoumarin derivatives were synthesized, and then benzocoumarin derivatives were also synthesized in expectation of the shift to the longer wavelength region by the extension of the conjugated system. Their fluorescence properties were investigated spectrophotometrically in acetonitrile and evaluated from the viewpoint of the intramolecular charge transfer (ICT) between push- and pull-substituents in the ground and the excited states. Among them, benzocoumarin derivatives especially fluoresced in the longer wavelength around 540 nm with remarkably large Stokes shifts beyond 10000 cm−1. Using such fluorophores, some novel fluorescence derivatization reagents for carboxylic acids, alcohols, phenols, and amines were preliminarily prepared as an example, and their derivatized products were also found to fluoresce in the longer wavelength region with large Stokes shifts.

  为了改善香豆素的荧光特性，特别是发射波长，合成了多种3取代-6-甲氧基香豆素衍生物，随后又合成了苯香豆素衍生物，期待通过延长共轭体系实现向长波长区域的转移。采用光谱法在乙腈中研究了它们的荧光特性，并从基态和激发态中推送和拉动取代基之间的分子内电荷转移（ICT）角度进行了评估。在这些衍生物中，苯香豆素衍生物特别在540 nm附近的长波长范围内具有显著的荧光，斯托克斯位移超过10000 cm−1。利用这些荧光基团，初步制备了一些新型的荧光衍生化试剂用于羧酸、醇、酚和胺，发现其衍生化产物在长波长区域也具有显著的荧光和较大的斯托克斯位移。