<4-Nitro-phenyl>-benzoyl-cyan-methan | 100965-82-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: <4-Nitro-phenyl>-benzoyl-cyan-methan
• 英文别名: 2-(4-nitro-phenyl)-3-oxo-3-phenyl-propionitrile；2-(4-nitrophenyl)-3-oxo-3-phenylpropanenitrile
• CAS: 100965-82-0
• 化学式: C₁₅H₁₀N₂O₃
• 分子量: 266.256
• InChiKey: NSNYEUHOQIAODU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.08
• 重原子数：
  20.0
• 可旋转键数：
  4.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  84.0
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  <4-Nitro-phenyl>-benzoyl-cyan-methan 在 硫酸 作用下， 生成 2-(4-硝基苯基)-1-苯基乙酮
  参考文献：
  名称：

  Nerdel,F. et al., Justus Liebigs Annalen der Chemie, 1960, vol. 632, p. 55 - 65

  摘要：

  DOI：
• 作为产物：
  描述：

  α-Cyan-α'-benzoyloxy-4-nitro-stilben 在 sodium hydroxide 作用下， 以 乙醇 为溶剂， 生成 <4-Nitro-phenyl>-benzoyl-cyan-methan
  参考文献：
  名称：

  Nerdel,F. et al., Justus Liebigs Annalen der Chemie, 1960, vol. 632, p. 55 - 65

  摘要：

  DOI：

文献信息

• The reaction of 2-(tetrazol-5-yl)alkyl ketones and of 2-(tetrazol-5-yl)alkanoic acid derivatives with lead tetraacetate. A novel method of preparation of alk-2-ynyl ketones and alk-2-ynoic acid derivatives †
  作者：József Fetter、Ildikó Nagy、Le Thanh Giang、Mária Kajtár-Peredy、Antal Rockenbauer、László Korecz、Gábor Czira

  DOI：10.1039/b005286h

  日期：——

  The majority of tetrazolylacetyl derivatives 2 and 7, when treated with lead tetraacetate in dry 1,4-dioxane at room or lower temperature, are oxidized with elimination of molecular nitrogen mainly to the corresponding alkynoyl derivatives 4 and 8, respectively. Vinylidenes (25) have been shown to be the intermediates of the reaction. The reaction does not take place when either the tetrazolyl group

  在干燥条件下用四乙酸铅处理大多数的四唑基乙酰基衍生物2和71,4-二恶烷 在室温或更低温度下被氧化，消除了分子 氮主要分别对应于相应的炔基衍生物4和8。已显示亚乙烯基（25）是反应的中间体。当四唑基被N-取代或将四唑和羰基分开的碳原子被双取代或这两个基团被两个碳原子分开时，该反应不会发生，如化合物17中所述。该反应提供了一种方便的方法，用于通过中间体四唑基乙酰基衍生物将2-氰基乙酰基衍生物转化为烷-2-炔基衍生物。4-甲氧基苯胺7o反应不同，得到稠合的杂环化合物 19o和20o。
• Application of time-variable feedback to the input amplifier of pulse magnetic resonance spectrometers: Experimental studies
  作者：A. V. Koptioug、E. J. Reijerse、A. A. K. Klaassen

  DOI：10.1007/bf03166126

  日期：2002.12

  Experimental research on the improvement of the sensitivity and time resolution of pulsed magnetic resonance spectrometers is discussed. It is shown that application of a time-variable feedback of a signal to the input of the receiver amplifier can decouple the "fixed" relationship between the quality factor Q and the ringdown time of the resonance system. Experiments were performed with low-frequency, radio-frequency and microwave pulse-type magnetic resonance receivers. Modifications of an S/C-band electron spin echo modulation spectrometer carried out to check the "time-variable feedback" performance are described. It is demonstrated that the application of a time-variable feedback can significantly reduce the ringdown time and improve the recovery properties of the magnetic resonance receiver system. It is also demonstrated that the time-variable feedback can improve the overall receiver sensitivity due to the fact that the working bandwidth of the resonance system can be optimized separately for the transmitting and the receiving mode. Signal values could be increased at least three times and the signal-to-noise ratio about 1.5-2 times. The largest improvement is achieved with the initially overcoupled resonator. Experimental spectra of test samples for different settings of the time-variable feedback are shown.
• PEDE K.-J.; ARNDT B.; DEHNE H., WISS. Z. PAED. HOCHSCH. LISELOTTE HERRMANN GUESTROW. MATH.-NATURWISS. FAK+
  作者：PEDE K.-J.、 ARNDT B.、 DEHNE H.

  DOI：——

  日期：——