7-phenyl-5H-[1,3]dioxolo[4,5-g]isochromen-5-one | 1283669-52-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并间二氧杂环戊烯类
• 英文名称: 7-phenyl-5H-[1,3]dioxolo[4,5-g]isochromen-5-one
• 英文别名: 6,7-methylenedioxy-3-phenylisocoumarin；6,7-methylenedioxy-3-phenylisocoumrin
• CAS: 1283669-52-2
• 化学式: C₁₆H₁₀O₄
• 分子量: 266.253
• InChiKey: IEUNNERIMIXSOR-UHFFFAOYSA-N

物化性质

• 沸点：
  462.4±45.0 °C(Predicted)
• 密度：
  1.397±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.19
• 重原子数：
  20.0
• 可旋转键数：
  1.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  48.67
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  1-(6-bromo-benzo[1,3]dioxol-5-yl)-3-phenyl-propane-1,3-dione 在 2-吡啶甲酸 、 copper(l) iodide 、 potassium carbonate 作用下， 以 甲苯 为溶剂， 反应 12.0h， 以62%的产率得到7-phenyl-5H-[1,3]dioxolo[4,5-g]isochromen-5-one
  参考文献：
  名称：

  通过级联分子内Ullmann型偶联-重排过程合成3-取代的香豆素

  摘要：

  通过铜（I）催化的1-（2-卤代苯基）-1,3-二酮的反应合成3-取代的香豆素的简单高效的策略已被开发出来。该程序基于级联铜催化的分子内Ullmann型C-芳基化和重排过程。这种方法可以耐受多种底物，并适用于文库合成。

  DOI：

  10.1021/jo300916s

文献信息

• Super acid catalysed sequential hydrolysis/cycloisomerization of o-(acetylenic)benzamides under microwave condition: Synthesis, antinociceptive and antiinflammatory activity of substituted isocoumarins
  作者：CHANDRASEKARAN PRAVEEN、P DHEENKUMAR、P T PERUMAL

  DOI：10.1007/s12039-012-0325-2

  日期：2013.1

  Synthesis of isocoumarins and related compounds via triflic acid promoted hydrolysis/cyclization sequence of 2-(alkynyl)benzamides under microwave condition was achieved. The substrate scope of the reaction was broad to include not only aromatic but also polyaromatic and heteroaromatic motifs, thus highlighting the significance of this methodology. One-pot operation, short reaction time, good chemical

  在微波条件下，通过三氟甲磺酸促进了2-（炔基）苯甲酰胺的水解/环化序列，合成了异香豆素及相关化合物。反应的底物范围很广，不仅包括芳族基团，还包括聚芳族和杂芳族基序，因此突出了该方法的重要性。一锅操作，短反应时间，良好的化学收率和出色的区域选择性是该方案的优点。使用体内啮齿动物模型评估所有合成的化合物的抗伤害感受和抗炎活性。 在微波条件下，通过三氟甲磺酸合成异香豆素促进了2-（炔基）苯甲酰胺的顺序水解/环化。使用体内啮齿动物模型评估所有合成的化合物的抗伤害感受和抗炎活性。
• Novel One-pot Synthesis of Polysubstituted Isocoumarins from Arynes and Trifluoroacetylated β-Diketones
  作者：Kentaro Okuma、Koki Hirano、Yukiko Tanabe、Ryoichi Itoyama、Atsumi Miura、Noriyoshi Nagahora、Kosei Shioji

  DOI：10.1246/cl.131112

  日期：2014.4.5

  Polysubstituted isocoumarins such as thunberginol A were synthesized by the reaction of substituted 2-(trimethylsilyl)phenyl triflate with trifluoromethylated β-diketones in the presence of CsF. The reaction proceeded via carbon–carbon bond insertion of aryne followed by intramolecular cyclization and CF3 anion extrusion. The –C(···O)CF3 unit has high potential for not only the nucleophilic moiety but also a useful leaving group of CF3.

  多取代的异香豆素如Thunberginol A是通过在CsF存在下，将取代的2-(三甲基硅基)苯三氟甲磺酸酯与三氟甲基化的β-二酮反应合成的。该反应是通过芳基炔的碳-碳键插入，再进行分子内环化和CF3阴离子的挤出进行的。-C(···O) 单元不仅具有成为亲核基团的高潜力，还具有作为 有用离去基团的优点。
• Reaction of arynes with trifluoroacetylated β-diketones: Novel formation of isocoumarins and phenanthrenes
  作者：Kentaro Okuma、Yukiko Tanabe、Takuto Fukami、Yuto Ishibashi

  DOI：10.1002/hc.21444

  日期：2018.12

  AbstractPolysubstituted isocoumarins were synthesized by the reaction of substituted 2‐(trimethylsilyl)aryl triflates with trifluoromethylated β‐diketones in the presence of CsF. The reaction proceeded through carbon‐carbon bond insertion of aryne and intramolecular cyclization to form intermediates of alcohol anions, which extruded trifluoromethyl anion to afford isocoumarins. By using CuBr as a catalyst, 2 eq. of aryne reacted with β‐diketones to afford phenanthrenes and 1,2‐diarylethanones. Although reaction of 2‐(trimethylsilyl)phenyl triflate with 1,1,1‐trifluoro‐4′‐methylbenzoylacetone in the presence of CsF gave 3‐(4′‐methylphenyl)isocoumarin in 67% yield, addition of 0.2 eq. of CuCN resulted in the formation of 9‐(4‐methylbenzoyl)‐10‐trifluoromethylphenanthrene in 35% yield.