5-nitro-4-(trifluoromethyl)-2-hexanone | 334865-23-5

• 分子结构分类: 有机化合物 - 有机1,3-偶极化合物 - 烯丙基型1,3-偶极有机化合物
• 英文名称: 5-nitro-4-(trifluoromethyl)-2-hexanone
• 英文别名: 5-Nitro-4-(trifluoromethyl)hexan-2-one；5-nitro-4-(trifluoromethyl)hexan-2-one
• CAS: 334865-23-5
• 化学式: C₇H₁₀F₃NO₃
• 分子量: 213.157
• InChiKey: JUKVRRLGXHNPFT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  62.9
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  5-nitro-4-(trifluoromethyl)-2-hexanone 在 氢氧化钾 、 potassium permanganate 、 magnesium sulfate 作用下， 以 甲醇 、 水 为溶剂， 反应 5.0h， 以69%的产率得到3-(trifluoromethyl)-2,5-hexanedione
  参考文献：
  名称：

  Novel 2,5-Hexanedione Analogues. Substituent-Induced Control of the Protein Cross-Linking Potential and Oxidation Susceptibility of the Resulting Primary Amine-Derived Pyrroles

  摘要：

  The neurotoxic gamma -diketone, 2,5-hexanedione (2,5-HD), induces neurofilamentous swellings at prenodal sites in proximal axons as a consequence of pyrrolation of lysine E-amino groups on neurofilament proteins. However, there is disagreement as to whether pyrrole formation and the associated alteration of noncovalent interactions is sufficient to cause neurofilament accumulation, or whether pyrrole autoxidation and subsequent protein-protein cross-linking is an obligatory event. To investigate gamma -diketones that might form pyrroles inert to autoxidative-induced cross-linking, we synthesized 1,1,1-trifluoro-2,5-hexanedione, 3-(trifluoromethyl)-2,5-hexanedione (3-TFMHD), and two 3-(dialkylaminocarbonyl)-2,5-diketones and assessed their rates of pyrrole formation with amines, the oxidation susceptibility of the resulting pyrroles, and the protein cross-linking potential in vitro, relative to those of 3-methyl-2,5-hexanedione. 1,1,1-Trifluoro-2,5-hexanedione does not form pyrroles, but the three 2,5-HD analogues with an electron-withdrawing 3-substituent all rapidly formed pyrroles that were inert to autoxidation. Although 3-TMFHD nonetheless still induced cross-linking of ribonuclease A, by a nonoxidative mechanism independent of the pyrrole, the two 3-(dialkylaninocarbonyl)-2,5-diketones did not exhibit any protein cross-linking. As these two gamma -diketones possess aqueous-organic partitioning properties similar to those of 2,5-HD, they should serve as useful mechanistic probes in further studies.

  DOI：

  10.1021/tx000169q
• 作为产物：
  描述：

  三氟乙酰丙酮 、 1,1,1-trifluoro-3-nitrobut-2-ene 在 sodium acetate 作用下， 反应 24.0h， 生成 5-nitro-4-(trifluoromethyl)-2-hexanone
  参考文献：
  名称：

  通过将1-三氟甲基-1,3-二酮的三氟乙酰化迈克尔加成到共轭硝基烯烃上来合成γ-硝基酮的新方法

  摘要：

  通过在乙醇中在乙酸钠存在下于室温下，通过将1-三氟甲基-1,3-二酮的三氟乙酰化迈克尔加成到共轭硝基烯烃上，开发了一种新颖的γ-硝基酮合成方法。对一系列三氟甲基化的1，3-二酮和硝基烯烃进行了研究，以确定该高产率反应的范围。

  DOI：

  10.1016/j.tetlet.2013.10.008

文献信息

• Novel 2,5-Hexanedione Analogues. Substituent-Induced Control of the Protein Cross-Linking Potential and Oxidation Susceptibility of the Resulting Primary Amine-Derived Pyrroles
  作者：Guozhang Xu、Malvinder P. Singh、Damodaragounder Gopal、Lawrence M. Sayre

  DOI：10.1021/tx000169q

  日期：2001.3.1

  The neurotoxic gamma -diketone, 2,5-hexanedione (2,5-HD), induces neurofilamentous swellings at prenodal sites in proximal axons as a consequence of pyrrolation of lysine E-amino groups on neurofilament proteins. However, there is disagreement as to whether pyrrole formation and the associated alteration of noncovalent interactions is sufficient to cause neurofilament accumulation, or whether pyrrole autoxidation and subsequent protein-protein cross-linking is an obligatory event. To investigate gamma -diketones that might form pyrroles inert to autoxidative-induced cross-linking, we synthesized 1,1,1-trifluoro-2,5-hexanedione, 3-(trifluoromethyl)-2,5-hexanedione (3-TFMHD), and two 3-(dialkylaminocarbonyl)-2,5-diketones and assessed their rates of pyrrole formation with amines, the oxidation susceptibility of the resulting pyrroles, and the protein cross-linking potential in vitro, relative to those of 3-methyl-2,5-hexanedione. 1,1,1-Trifluoro-2,5-hexanedione does not form pyrroles, but the three 2,5-HD analogues with an electron-withdrawing 3-substituent all rapidly formed pyrroles that were inert to autoxidation. Although 3-TMFHD nonetheless still induced cross-linking of ribonuclease A, by a nonoxidative mechanism independent of the pyrrole, the two 3-(dialkylaninocarbonyl)-2,5-diketones did not exhibit any protein cross-linking. As these two gamma -diketones possess aqueous-organic partitioning properties similar to those of 2,5-HD, they should serve as useful mechanistic probes in further studies.
• A novel synthesis of γ-nitro ketones via detrifluoroacetylative Michael addition of 1-trifluoromethyl-1,3-diketones to conjugated nitroalkenes
  作者：Alexey Yu. Barkov、Vladislav Yu. Korotaev、Vyacheslav Ya. Sosnovskikh

  DOI：10.1016/j.tetlet.2013.10.008

  日期：2013.12

  A novel synthesis of γ-nitro ketones via detrifluoroacetylative Michael addition of 1-trifluoromethyl-1,3-diketones to conjugated nitroalkenes in the presence of sodium acetate in ethanol at room temperature is developed. A series of trifluoromethylated 1,3-diones and nitroalkenes are surveyed to determine the scope of this high-yielding reaction.

  通过在乙醇中在乙酸钠存在下于室温下，通过将1-三氟甲基-1,3-二酮的三氟乙酰化迈克尔加成到共轭硝基烯烃上，开发了一种新颖的γ-硝基酮合成方法。对一系列三氟甲基化的1，3-二酮和硝基烯烃进行了研究，以确定该高产率反应的范围。