p-bis<<(trifluoroacetyl)amino>methyl>benzene | 119450-90-7

• 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: p-bis<<(trifluoroacetyl)amino>methyl>benzene
• 英文别名: 1,4-bis(trifluoroacetaminomethyl)benzene；p-bis[[(trifluoroacetyl)amino]methyl]benzene；2,2,2-trifluoro-N-[[4-[[(2,2,2-trifluoroacetyl)amino]methyl]phenyl]methyl]acetamide
• CAS: 119450-90-7
• 化学式: C₁₂H₁₀F₆N₂O₂
• 分子量: 328.214
• InChiKey: WCEYYOFWEXSSQI-UHFFFAOYSA-N

物化性质

• 保留指数：
  1827

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  58.2
• 氢给体数：
  2
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  p-bis<<(trifluoroacetyl)amino>methyl>benzene 在 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 24.0h， 生成 N,N',N'',N'''-tetrakis<4-(methoxycarbonyl)benzoyl>-2,11,20,29-tetraaza<3.3.3.3>paracyclophane
  参考文献：
  名称：

  Syntheses of macrocyclic enzyme models. 8. Conformational mobility and molecular recognition by the internal cage of kyuphane

  摘要：

  Temperature-dependent H-1 NMR measurements in CDCl3-CS2 (3:7 v/v) and DMF-d7 in concert with MM2 conformational analysis reveal that the molecular framework of "Kyuphane" (1), a cage-type cubical molecule with six faces each consisting of a 2,11,20,29-tetraaza[3.3.3.3]paracyclophane ring, is significantly more rigid than the corresponding noncage host (2), but still conformationally flexible. A slow rate of interconversion among degenerated conformers of the lowest energy C(i) conformation accounts for the observed NMR line broadening. Hosts 1 and 2 are soluble in acidic aqueous media below pH 4 and behave as polycationic species. Electrostatic field solvation analysis of the tetraprotonated salt of Kyuphane suggests a square-planar proton placement (11a) to predominate in solution. Line broadening for the tetracation appears to arise from both conformer interconversion and proton exchange. Guest recognition behavior of these hosts under acidic conditions was studied by means of H-1 NMR and fluorescence spectroscopy. Kyuphane demonstrates a pH-dependent guest-binding ability due to changes in the specific microenvironmental polarity of its three-dimensional cavity upon variable protonation of the nitrogen atoms. The host also shows size-sensitive and regioselective molecular discrimination originating from the semirigid geometry of the hydrophobic cavity and the specific protonation geometry. The specific molecular discrimination evidenced by 1 was analyzed by MM2 molecular mechanics and applied to selective transport of hydrophobic molecules between organic phases across an aqueous phase in which 1 was present as a carrier. It is noteworthy that the proton NMR signals of guest molecules naphthalene-2,6-disulfonate, 8-anilinonaphthalene-1-sulfonate, and 6-p-toluidinonaphthalene-2-sulfonate completely disappear upon complexation with Kyuphane, whereas the identical guest naphthalene-2,6-disulfonate shows normal upfield shifts of its NMR proton signals upon complexation with 2.

  DOI：

  10.1021/ja00022a006
• 作为产物：
  描述：

  对苯二腈 在 tropylium tetrafluoroborate 作用下， 以 甲苯 为溶剂， 反应 24.0h， 生成 p-bis<<(trifluoroacetyl)amino>methyl>benzene
  参考文献：
  名称：

  Tropyium 四氟硼酸盐促进腈、亚胺和酰胺的硼氢化

  摘要：

  腈类（现成的合成前体）转化为胺、亚胺或酰胺是合成实验室和工业化学中重要的化学转化。有各种各样的方法来促进这种类型的化学。但是，仍然存在一些限制。为了追求实用且环境友好的腈硼氢化反应，我们开发了一种新的有机催化方法，用频哪醇硼烷将腈、亚胺或酰胺还原为胺。通过将进一步的官能化反应引入到一锅中的粗硼氢化混合物中，可以方便地获得来自这些胺的有价值的衍生物。

  DOI：

  10.1039/d2gc01905a

文献信息

• A Simple Synthetic Method for Tetraaza[3.3.3.3]meta- and paracyclopanes by Alkylation of<i>N</i>-Substituted Trifluoroacetamide
  作者：Teruo Shinmyozu、Nobuhiko Shibakawa、Ken'ichi Sugimoto、Hiroko Sakane、Hiroyuki Takemura、Katsuya Sako、Takahiko Inazu

  DOI：10.1055/s-1993-26038

  日期：——

  A simple and practical synthesis of the title compounds 1b and 2b is described. Alkylation of N-substituted trifluoroacetamides (5a and b) with appropriate dibromides (6 and 9) in the presence of sodium hydride in N,N-dimethylformamide at 100°C, or powdered potassium hydroxide in refluxing acetone, followed by removal of the trifluoroacetyl group and N-methylation of the resultant amines provides the desired 1b and 2b in 21 and 19 % overall yields, respectively, along with their lower and higher homologs.

  标题化合物1b和2b的一种简便实用的合成方法如下所述。在100°C下，在N,N-二甲基甲酰胺中，使用氢化钠，或将粉状氢氧化钾加入回流的丙酮中，使N-取代的三氟乙酰胺（5a和5b）与适当的二溴化物（6和9）进行烷基化反应，随后去除三氟乙酰基并使所得胺进行N-甲基化，分别以21%和19%的总产率得到了所需的1b和2b，同时还生成了其低级和高级同系物。
• USUI, MASAO;NISHIWAKI, TOHRU;ANDA, KINJI;HIDA, MITSUHIKO, NIPPON KAGAKU KAJSI,(1988) N 7, 1052-1058
  作者：USUI, MASAO、NISHIWAKI, TOHRU、ANDA, KINJI、HIDA, MITSUHIKO

  DOI：——

  日期：——