三氟乙酰胺,-(2-溴-4-氟-苯甲基) | 143468-22-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 中文名称: 三氟乙酰胺,-(2-溴-4-氟-苯甲基)
• 英文名称: 2-(4-Methoxyphenyl)-3-nitrochromen-4-one
• CAS: 143468-22-8
• 化学式: C₁₆H₁₁NO₅
• 分子量: 297.267
• InChiKey: UODBUBWNHHUWFP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  22
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  81.4
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  三氟乙酰胺,-(2-溴-4-氟-苯甲基) 在 盐酸 、 tin 作用下， 以 氯仿 、 水 为溶剂， 反应 1.0h， 以88%的产率得到3-amino-2-(4-methoxyphenyl)-4H-1-benzopyran-4-one
  参考文献：
  名称：

  Regioselective 3-Nitration of Flavones: A New Synthesis of 3-Nitro- and 3-Aminoflavones

  摘要：

  我们开发了一种新的、通用的、具有区域选择性的黄酮 3-硝化方法。硝化反应依赖于溶剂，通过硝基自由基途径进行，相应的 3-硝基黄酮以中等到非常好的收率（高达 81%）获得。通过还原 3-硝基黄酮，可以制备相应的 3-氨基黄酮，收率非常高（高达 96%）。

  DOI：

  10.1055/s-0029-1219838
• 作为产物：
  描述：

  3-chloro-3,4-dihydro-4-hydroxy-2-(4-methoxy-phenyl)-3-nitro-2H-1-benzopyran 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 10.0h， 生成 三氟乙酰胺,-(2-溴-4-氟-苯甲基)
  参考文献：
  名称：

  Synthesis of 2-Aryl-3-nitro-4H-1-benzopyran-4-ones

  摘要：

  2-Aryl-3-nitro-4H-1-benzopyran-4-ones (or 3-nitroflavones) 3 are conveniently prepared in good yields using a two-step approach starting from 2-aryl-3-chloro-3,4-dihydro-4-hydroxy-3-nitro-2H-1-benzopyrans 1. A general synthesis of the novel 2-aryl-3-chloro-2,3-dihydro-3-nitro-4H-1-benzopyran-4-ones 2 employed as intermediates in the procedure is described.

  DOI：

  10.1055/s-1992-26198

文献信息

• Synthesis and in vitro cytotoxicity of a series of 3-aminoflavones
  作者：D Dauzonne、B Folléas、L Martinez、GG Chabot

  DOI：10.1016/s0223-5234(97)84363-2

  日期：1997.1

  To further understand the molecular requirements for the antiproliferative activity of flavonoids, a series of 3-aminoflavones and some of their derivatives were prepared and evaluated using L1210 murine leukemia. Our novel five-step synthetic approach required easily available substituted aromatic aldehydes as starting materials and proved more convenient and more general than previously reported methods. Our results in the 3-aminoflavones series indicated that the 4'-methoxy group is important for cytotoxic activity. Moreover, for the flavone-8-acetic analogs, a marked increase in potency was observed with the addition of a 3-amino or a 3-nitro group, Methoxy groups on the 6 and 7 positions of flavonoids (as in cirsiliol) also appear to be important for antiproliferative activity. These results are essential for the further understanding of the critical molecular requirements that lead to antiproliferative properties in the flavonoid series.
• Regioselective 3-Nitration of Flavones: A New Synthesis of 3-Nitro- and 3-Aminoflavones
  作者：Artur Silva、Diana Patoilo、José Cavaleiro

  DOI：10.1055/s-0029-1219838

  日期：2010.6

  A new, general, and regioselective method for the 3-nitration of flavones have been developed. The nitration reaction is solvent dependent, proceeds via a nitro radical pathway, and the corresponding 3-nitroflavones have been obtained in moderate to very good yields (up to 81%). The reduction of 3-nitroflavones allowed the preparation of the corresponding 3-aminoflavones in very good yields (up to 96%).

  我们开发了一种新的、通用的、具有区域选择性的黄酮 3-硝化方法。硝化反应依赖于溶剂，通过硝基自由基途径进行，相应的 3-硝基黄酮以中等到非常好的收率（高达 81%）获得。通过还原 3-硝基黄酮，可以制备相应的 3-氨基黄酮，收率非常高（高达 96%）。
• Synthesis of 2-Aryl-3-nitro-4<i>H</i>-1-benzopyran-4-ones
  作者：Daniel Dauzonne、Cyrille Grandjean

  DOI：10.1055/s-1992-26198

  日期：——

  2-Aryl-3-nitro-4H-1-benzopyran-4-ones (or 3-nitroflavones) 3 are conveniently prepared in good yields using a two-step approach starting from 2-aryl-3-chloro-3,4-dihydro-4-hydroxy-3-nitro-2H-1-benzopyrans 1. A general synthesis of the novel 2-aryl-3-chloro-2,3-dihydro-3-nitro-4H-1-benzopyran-4-ones 2 employed as intermediates in the procedure is described.

  2-Aryl-3-nitro-4H-1-benzopyran-4-ones (or 3-nitroflavones) 3 are conveniently prepared in good yields using a two-step approach starting from 2-aryl-3-chloro-3,4-dihydro-4-hydroxy-3-nitro-2H-1-benzopyrans 1. A general synthesis of the novel 2-aryl-3-chloro-2,3-dihydro-3-nitro-4H-1-benzopyran-4-ones 2 employed as intermediates in the procedure is described.