2,4,8-trinitro-dibenzofuran | 873974-44-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 2,4,8-trinitro-dibenzofuran
• 英文别名: 2,4,8-Trinitrodibenzofuran
• CAS: 873974-44-8
• 化学式: C₁₂H₅N₃O₇
• 分子量: 303.188
• InChiKey: MOAXBZJGSVKEBP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  22
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  151
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  2,4,8-trinitro-dibenzofuran 在 硝酸 作用下， 生成 2,3,6,8-tetranitro-dibenzofuran
  参考文献：
  名称：

  Yamashiro, Nippon Kagaku Kaishi/Journal of the Chemical Society of Japan, 1938, vol. 59, p. 443,448

  摘要：

  DOI：
• 作为产物：
  描述：

  5.3'-dinitro-2'-hydroxy-2-methoxy-biphenyl 在 硫酸 、 氢溴酸 、 硝酸 、 溶剂黄146 、 barium carbonate 作用下， 生成 2,4,8-trinitro-dibenzofuran
  参考文献：
  名称：

  Yamashiro, Nippon Kagaku Kaishi/Journal of the Chemical Society of Japan, 1938, vol. 59, p. 443,448

  摘要：

  DOI：

文献信息

• Studies on the Derivatives of Biphenylene Oxide. VII. The Influence of Substitution on the Opening and Closing of the Furan-ring of Biphenylene Oxide
  作者：Seishi Yamashiro

  DOI：10.1246/bcsj.17.10

  日期：1942.1

  removal of acetyl groups of those compounds and also the formation of the furan-ring. This facilitating effect varies with the relative position of the nitro group and the acetoxyl group, the order of the effect being ortho>para>meta; but the m-nitrosubstitution induces no ring-formation, giving exclusively nitrobiphenols. (ii) The introduction of bromine into the diacetoxydiphenyls hinders the removal

  (1) 比较了邻'，邻'-双酚及其硝基、溴硝基和溴代衍生物的取代对呋喃环形成的影响，以钡的干燥碳酸盐反应得到以下结果或钠和衍生自这些双酚的二乙酰氧基二苯基。(i) 将硝基引入二乙酰氧基二苯基有利于去除这些化合物的乙酰基以及形成呋喃环。这种促进作用随着硝基和乙酰氧基的相对位置而变化，作用顺序为邻>对>间；但间硝基取代不诱导成环，仅产生硝基双酚。(ii) 将溴引入二乙酰氧基二苯基会阻碍乙酰基的去除以及呋喃环的形成，没有得到溴化联苯醚。相对于乙酰氧基，这种效果在 o-取代的情况下比在 p-one 的情况下更显着......
• Yamashiro, Bulletin of the Chemical Society of Japan, 1941, vol. 16, p. 7,10
  作者：Yamashiro

  DOI：——

  日期：——
• Yamashiro, Nippon Kagaku Kaishi/Journal of the Chemical Society of Japan, 1938, vol. 59, p. 945,950
  作者：Yamashiro

  DOI：——

  日期：——
• Determination of additives in synthetic base oils for gas turbine engines
  作者：M. Bernabei、R. Secl�、G. Bocchinfuso

  DOI：10.1002/1520-667x(2000)12:11<585::aid-mcs40>3.0.co;2-o

  日期：——

  Lubricating synthetic oils, used in gas turbine engines of aircraft, are generally made up of esters of branched-chain alcohols. Some additives are added to the base of synthetic oil improving the lubrication performance efficiency and avoiding corrosion, wear and oxidation phenomena. Antioxidants used are generally composed of hindered phenols or aromatic amines in a concentration range of 0.25-5% (w/w). Antiwear additives are generally made up of phosphorus compounds and they should be less than 3% (w/w). In this paper, two methods are described determining additives found in lubricating oils. Both methods, based on gas chromatographic techniques, were used to measure these additives in several samples of synthetic oils, before and after accelerated oxidation. The first method is based on a gas chromatography mass spectrometer detector in selected ions monitoring, whereas the second one on a flame photometric detector with an optical filter selective for phosphorus compounds. These techniques, because of their selectivity, do not require sample pretreatments other than a dilution and addition of an internal standard and can be a useful tool evaluating ageing of lubricants in gas turbine engines. Analysis of 1-5 mt oil sample can be performed in less than 30 min. Sensitivity, reproducibility, and accuracy data of the methods are reported. (C) 2001 John Wiley & Sons, Inc.