2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene | 31438-93-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene
• 英文别名: 4-Diazo-2,3,5,6-tetrafluorocyclohexa-2,5-diene-1-one；tetrafluoro-4-diazo-2,5-cyclohexadiene-1-on；1-Diazotetrafluorbenzol-4-oxid；4-Diazonio-2,3,5,6-tetrafluorophenolate
• CAS: 31438-93-4
• 化学式: C₆F₄N₂O
• 分子量: 192.072
• InChiKey: JVSIZRRVLWRSTK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  51.2
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene 生成 2,3,5,6-Tetrafluorocyclohexa-2,5-diene-1-one-4-ketene
  参考文献：
  名称：

  4-Oxo-2,3,5,6-tetrafluorocyclohexa-2,5-dienylidene—A Highly Electrophilic Triplet Carbene

  摘要：

  The 4-oxocyclohexa-2,5-dienylidenes are an interesting class of highly electrophilic carbenes. We investigated the reactivity of the 2,3,5,6-tetrafluorinated and -tetrachlorinated derivatives 1b and 1c with small molecules under conditions of matrix isolation. The reactions with molecular oxygen and with carbon monoxide produce the expected carbonyl O-oxides and ketenes, respectively. As a result of the extreme electrophilicity of 1b and c both carbenes insert with no or very small activation barriers into H2 or the CH bonds of hydrocarbons. Obviously, spin restrictions for these formally spin-forbidden reactions do not result in substantial thermal activation barriers.

  DOI：

  10.1002/1521-3765(20001215)6:24<4567::aid-chem4567>3.0.co;2-a
• 作为产物：
  描述：

  4-Amino-2,3,5,6-tetrafluorophenol 在 硫酸 、 sodium nitrite 作用下， 生成 2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene
  参考文献：
  名称：

  多氟芳烃。第十五部分。重氮氧化物及相关化合物

  摘要：

  五氟硝基苯与氢氧化钾在叔丁醇中反应，主要生成四氟-2-和四氟-4-硝基苯酚，以及痕量的三氟-4-硝基间苯二酚。用锡和盐酸还原每种主要产物，得到相应的氨基苯酚，在亚硝酸钠的70％硫酸水溶液中处理，生成1-氧化重氮四氟苯或2-氧化重氮四氟苯。苯中1,2-重氮氧化物的光化学或热分解反应可得到2,3,4,5-四氟-6-羟基联苯，苯甲腈，乙腈或异硫氰酸苯酯中1,2-重氮氧化物的热分解反应生成4,5,6,7-四氟-2-苯基苯并恶唑，4,5,6,7-四氟-2-甲基苯并恶唑或4,5,6,7-四氟-2-苯基-ylimino-1,3-苯并沙硫醇。

  DOI：

  10.1039/j39710000562

文献信息

• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: F: PerFHalOrg.8, 3, page 55 - 151
  作者：

  DOI：——

  日期：——
• 4-Oxo-2,3,5,6-tetrafluorocyclohexa-2,5-dienylidene—A Highly Electrophilic Triplet Carbene
  作者：Wolfram Sander、Rolf Hübert、Elfi Kraka、Jürgen Gräfenstein、Dieter Cremer

  DOI：10.1002/1521-3765(20001215)6:24<4567::aid-chem4567>3.0.co;2-a

  日期：2000.12.15

  The 4-oxocyclohexa-2,5-dienylidenes are an interesting class of highly electrophilic carbenes. We investigated the reactivity of the 2,3,5,6-tetrafluorinated and -tetrachlorinated derivatives 1b and 1c with small molecules under conditions of matrix isolation. The reactions with molecular oxygen and with carbon monoxide produce the expected carbonyl O-oxides and ketenes, respectively. As a result of the extreme electrophilicity of 1b and c both carbenes insert with no or very small activation barriers into H2 or the CH bonds of hydrocarbons. Obviously, spin restrictions for these formally spin-forbidden reactions do not result in substantial thermal activation barriers.
• Polyfluoroarenes. Part XV. Diazo-oxides and related compounds
  作者：J. M. Birchall、R. N. Haszeldine、J. Nikokavouras、E. S. Wilks

  DOI：10.1039/j39710000562

  日期：——

  Pentafluoronitrobenzene reacts with potassium hydroxide in t-butyl alcohol to give mainly tetrafluoro-2-and tetra-fluoro-4-nitrophenol, with traces of trifluoro-4-nitroresorcinol. Reduction of each of the major products with tin and hydrochloric acid gives the corresponding aminophenol, which yields 1-diazotetrafluorobenzene 2-oxide or 1-diazotetrafluorobenzene 4-oxide on treatment with sodium nitrite

  五氟硝基苯与氢氧化钾在叔丁醇中反应，主要生成四氟-2-和四氟-4-硝基苯酚，以及痕量的三氟-4-硝基间苯二酚。用锡和盐酸还原每种主要产物，得到相应的氨基苯酚，在亚硝酸钠的70％硫酸水溶液中处理，生成1-氧化重氮四氟苯或2-氧化重氮四氟苯。苯中1,2-重氮氧化物的光化学或热分解反应可得到2,3,4,5-四氟-6-羟基联苯，苯甲腈，乙腈或异硫氰酸苯酯中1,2-重氮氧化物的热分解反应生成4,5,6,7-四氟-2-苯基苯并恶唑，4,5,6,7-四氟-2-甲基苯并恶唑或4,5,6,7-四氟-2-苯基-ylimino-1,3-苯并沙硫醇。