7-fluoro-3-phenyl-1H-isochromen-1-one | 1283669-54-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 异香豆素及其衍生物
• 英文名称: 7-fluoro-3-phenyl-1H-isochromen-1-one
• 英文别名: 7-fluoro-3-phenylisocoumarin；7-Fluoro-3-phenylisochromen-1-one
• CAS: 1283669-54-4
• 化学式: C₁₅H₉FO₂
• 分子量: 240.234
• InChiKey: FNYPEFDWTCLISX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  methyl 5-fluoro-2-(phenylethynyl)benzoate 在 三氟化硼乙醚 作用下， 以 1,2-二氯乙烷 为溶剂， 反应 4.0h， 以93%的产率得到7-fluoro-3-phenyl-1H-isochromen-1-one
  参考文献：
  名称：

  Lactonization of 2-Alkynylbenzoates for the Assembly of Isochromenones Mediated by BF₃·Et₂O

  摘要：

  A general and efficient lactonization method of readily available 2-alkynylbenzoates affording biologically important isochromenones has been realized via a solely BF3 center dot Et2O-mediated 6-endo-dig cyclization process under mild conditions. An alternative mechanistic pathway in which BF3 center dot Et2O activates the carbonyl of the ester moiety, rather than the alkyne triple bond, was postulated on the basis of control experiment results. Gram-scale reaction and further application for the assembly of more complex molecules demonstrated the practicability of the protocol.

  DOI：

  10.1021/acs.joc.9b01601

文献信息

• Palladium-catalyzed carbonylative synthesis of isocoumarins and phthalides by using phenyl formate as a carbon monoxide source
  作者：Qing Yuan、Zhen-Bang Chen、Fang-Ling Zhang、Yong-Ming Zhu

  DOI：10.1039/c6ob02409b

  日期：——

  A simple and efficient palladium-catalyzed intramolecular carbonylative synthesis of isocoumarins and phthalides from the easily available starting materials by employing phenyl formate as a CO surrogate has been achieved. The approach affords target compounds in good to excellent yields with the advantages of lower toxicity, milder conditions, easy operation and wide functional group tolerance.

  通过使用甲酸苯酯作为CO替代物，从容易获得的起始原料中，实现了一种简单有效的钯催化的香豆素和邻苯二酚的分子内羰基化合成反应。该方法以较低的毒性，较温和的条件，易于操作和宽泛的官能团耐受性等优点，以优异的收率提供了目标化合物。
• Palladium-Catalyzed Sequential Nucleophilic Addition/Oxidative Annulation of Bromoalkynes with Benzoic Acids To Construct Functionalized Isocoumarins
  作者：Guangbin Jiang、JianXiao Li、Chuanle Zhu、Wanqing Wu、Huanfeng Jiang

  DOI：10.1021/acs.orglett.7b01919

  日期：2017.9.1

  for the preparation of 3-substituted isocoumarins via palladium-catalyzed nucleophilic addition/oxidative annulation of bromoalkynes with benzoic acids has been developed. Remarkably, preliminary mechanistic studies indicated that the transformation might proceed via a stereo- and regioselective nucleophilic addition and C–H functionalization procedure.

  已经开发了通过钯催化的溴炔烃与苯甲酸的亲核加成/氧化环化反应制备3-取代的香豆素的有效而有效的方案。值得注意的是，初步的机理研究表明，转化可能通过立体和区域选择性亲核加成和CH功能化程序进行。
• Modular synthesis of 3-substituted isocoumarins <i>via</i> silver-catalyzed aerobic oxidation/<i>6-endo</i> heterocyclization of <i>ortho</i>-alkynylbenzaldehydes
  作者：Hao Wu、Yi-Chun Wang、Andrey Shatskiy、Qiu-Yan Li、Jian-Quan Liu、Markus D. Kärkäs、Xiang-Shan Wang

  DOI：10.1039/d1ob01065d

  日期：——

  A method involving silver-catalyzed aerobic oxidation/6-endo heterocyclization of ortho-alkynylbenzaldehydes to yield 3-substituted isocoumarins is described. The developed protocol allows convenient access to a range of synthetically useful 3-substituted isocoumarins and related fused heterocyclolactones in good to high yields, using silver tetrafluoroborate as the catalyst, and atmospheric oxygen

  描述了一种涉及银催化的有氧氧化/邻位-炔基苯甲醛的6-endo杂环化以产生 3-取代的异香豆素的方法。所开发的协议允许以良好至高产率方便地获得一系列合成有用的 3-取代异香豆素和相关的稠合杂环内酯，使用四氟硼酸银作为催化剂，大气氧作为终端氧化剂和内环氧的来源。机理研究表明自由基途径的参与。
• NHC-Catalyzed Oxidative Cyclization Reactions of 2-Alkynylbenzaldehydes under Aerobic Conditions: Synthesis of O-Heterocycles
  作者：Jong Hyub Park、Sachin V. Bhilare、So Won Youn

  DOI：10.1021/ol200481u

  日期：2011.5.6

  An NHC-catalyzed, regio- and stereoselective oxidative cyclization of o-alkynylbenzaldehydes bearing an unactivated alkyne moiety as an internal electrophile has been developed to afford phthalides and isocoumarins. A single organocatalytic system enabled two sequential C−O bond formations to take place in an atom economical manner via highly efficient dual activation. Molecular oxygen in air could

  已开发出具有NHC催化，带有未活化炔烃部分的邻炔基苯甲醛作为内部亲电子试剂的区域和立体选择性氧化环化反应，以提供邻苯二甲酸酯和异香豆素。单一的有机催化系统通过高效的双重活化，以原子经济的方式使两个连续的C-O键形成成为可能。在我们新开发的试剂系统下，空气中的分子氧可以用作氧原子的来源，用于将醛氧化为相应的苯甲酸。
• Palladium-Catalyzed Synthesis of Isocoumarins and Phthalides via <i>tert</i>-Butyl Isocyanide Insertion
  作者：Xiang-Dong Fei、Zhi-Yuan Ge、Ting Tang、Yong-Ming Zhu、Shun-Jun Ji

  DOI：10.1021/jo302004u

  日期：2012.11.16

  efficient strategy for the synthesis of isocoumarins and phthalides through a palladium(0)-catalyzed reaction incorporating tert-butyl isocyanide has been developed. This process, providing one of the simplest methods for the synthesis of this class of valuable lactones, involves two steps including cyclization reaction and simple acid hydrolysis. The methodology is tolerant of a wide range of substrates

  已经开发了通过钯（0）-催化的结合叔丁基异氰化物的合成香豆素和邻苯二甲酸酯的新颖且高效的策略。该方法提供了合成这类有价值的内酯的最简单方法之一，涉及两个步骤，包括环化反应和简单的酸水解。该方法可耐受多种底物并适用于文库合成。