7-fluoro-1-methylquinolinium iodide

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: 7-fluoro-1-methylquinolinium iodide
• 英文别名: 7-Fluoro-1-methylquinolin-1-ium;iodide
• 化学式: C₁₀H₉FN*I
• 分子量: 289.091
• InChiKey: DPGKSKNXWATECR-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -1.19
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  3.9
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  7-fluoro-1-methylquinolinium iodide 在 双氧水 、 potassium hydroxide 作用下， 以 水 、 1,2-二氯乙烷 为溶剂， 反应 48.5h， 生成 4-Fluoro-2-(methylamino)benzaldehyde
  参考文献：
  名称：

  抗植物病原真菌的新隐油菜素衍生物的设计，合成和抗真菌评价。

  摘要：

  Neocryptolepine是一种从传统非洲草药Cryptolepis sanguinolenta中分离出来的生物碱，在过去的几十年中，其广泛的生物活性得到了阐明。在这项研究中，从经济且容易获得的原料中设计和合成了新隐油菜籽及其衍生物（1-49）。通过质子核磁共振，碳核磁共振和质谱法证实了它们的结构。筛选了合成的化合物对六种农业上重要的真菌茄根丝枯病菌，灰葡萄孢（B. cinerea），禾谷镰刀菌，冬瓜霉菌，菌核菌和稻瘟病菌的抗真菌特性。体外测定结果表明，化合物5、21、24、35、40、45，47和47对EC值低于1μg/ mL的真菌表现出显着的抗真菌活性。明显地，化合物24显示出对灰葡萄芽孢杆菌的最有效的抑制效力（EC 50 ＝0.07μg/ mL），并且来自体内实验的数据表明，化合物24表现出与阳性对照的鳞茎鳞茎相当的保护活性。初步的机理研究表明，化合物24显示出令人印象深刻的孢子

  DOI：

  10.1021/acs.jafc.9b06793
• 作为产物：
  描述：

  7-氟喹啉 、 碘甲烷 以 异丙醇 为溶剂， 反应 3.0h， 生成 7-fluoro-1-methylquinolinium iodide
  参考文献：
  名称：

  抗植物病原真菌的新隐油菜素衍生物的设计，合成和抗真菌评价。

  摘要：

  Neocryptolepine是一种从传统非洲草药Cryptolepis sanguinolenta中分离出来的生物碱，在过去的几十年中，其广泛的生物活性得到了阐明。在这项研究中，从经济且容易获得的原料中设计和合成了新隐油菜籽及其衍生物（1-49）。通过质子核磁共振，碳核磁共振和质谱法证实了它们的结构。筛选了合成的化合物对六种农业上重要的真菌茄根丝枯病菌，灰葡萄孢（B. cinerea），禾谷镰刀菌，冬瓜霉菌，菌核菌和稻瘟病菌的抗真菌特性。体外测定结果表明，化合物5、21、24、35、40、45，47和47对EC值低于1μg/ mL的真菌表现出显着的抗真菌活性。明显地，化合物24显示出对灰葡萄芽孢杆菌的最有效的抑制效力（EC 50 ＝0.07μg/ mL），并且来自体内实验的数据表明，化合物24表现出与阳性对照的鳞茎鳞茎相当的保护活性。初步的机理研究表明，化合物24显示出令人印象深刻的孢子

  DOI：

  10.1021/acs.jafc.9b06793

文献信息

• 7-Dialkylamino-1-alkylquinolinium Salts: Highly Versatile and Stable Fluorescent Probes
  作者：Otto van den Berg、Wolter F. Jager、Stephen J. Picken

  DOI：10.1021/jo052441c

  日期：2006.3.31

  7-Dialkylamino- and 7-alkylsulfenyl-1-alkylquinolinium salts have been synthesized using a novel synthetic approach. The key intermediate, 7-fluoro-1-methylquinolinium iodide, was shown to possess high reactivity toward nitrogen and sulfur nucleophiles, and the kinetics of this nucleophilic aromatic substitution reaction was investigated. A wide variety of compounds were synthesized and characterized spectroscopically. High fluorescence quantum yields were observed, and this was attributed to the rigid molecular architecture. The thermal and photochemical stability of a number of compounds was investigated, and it was demonstrated that 7-dialkylamino-1-methylquinolinium salts have superior stability compared to a number of hemicyanine dyes and rigid charge-transfer probes. Based on the high quantum yields, the large Stokes shifts, and in particular, the high thermal and photochemical stability, it is concluded that 7-dialkylamino-1-methylquinolinium salts are excellent color-shifting, mobility-sensitive fluorescent probes for polymer characterization and other demanding applications.
• Highly Sensitive Water-Soluble Fluorescent pH Sensors Based on the 7-Amino-1-methylquinolinium Chromophore
  作者：Wolter F. Jager、Tessel S. Hammink、Otto van den Berg、Ferdinand C. Grozema

  DOI：10.1021/jo902225k

  日期：2010.4.2

  Highly sensitive water-soluble fluorescent pH sensors have been synthesized employing the 7-amino1-methylquinolinium (7AMQ) chromophore. These compounds, which contained oligomethylene spacers and substituted amine receptor units, were prepared in high yields and purity by a single reaction from the readily available 7-fluoro-1-methylquinolinium iodide. Density functional theory (DFT) and semiempirical INDO/s calculations have been performed to describe the ground state and the locally excited state of the chromophore. The photophysics and the sensor characteristics have been investigated. Dissociation constants pK(A)* ranging from 5.8 to 9.9 have been obtained. An additional quenching process at pH 11, due to excited state deprotonation at N7, has been observed. Fluorescence quantum yields in the protonated "on-state" between 0.75 and 0.85 and fluorescence enhancements (FIE) between 2 and 55 were determined. These values are significantly higher than those of molecules based on other CT-chromophores that contain identical spacer-receptor units. The high fluorescence enhancements may be explained by the low rate of fluorescence (similar to 6 x 10(7) s(-1)) and the high excited state reduction potential (similar to 1.6 eV) of the 7AMQ chromophore.