3-(4-methylphenyl)-1H-isochromen-1-one | 62827-73-0

• 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: 3-(4-methylphenyl)-1H-isochromen-1-one
• 英文别名: 3-(p-tolyl)-1H-isochromen-1-one；3-(p-tolyl)isocoumarin；3-(4-Methylphenyl)-1H-2-benzopyran-1-one；3-(4-methylphenyl)isochromen-1-one
• CAS: 62827-73-0
• 化学式: C₁₆H₁₂O₂
• 分子量: 236.27
• InChiKey: FDFPICMLMJIYNM-UHFFFAOYSA-N

物化性质

• 熔点：
  118 °C
• 沸点：
  393.6±42.0 °C(Predicted)
• 密度：
  1.208±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-(4-methylphenyl)-1H-isochromen-1-one 在 劳森试剂 作用下， 以 甲苯 为溶剂， 以94%的产率得到1-Thioxo-3-p-tolyl-isochromen
  参考文献：
  名称：

  Isocoumarin Thioanalogues as Potential Antibacterial Agents

  摘要：

  A series of 3-substituted-1H-isochromene-1-thiones (3) were prepared by the reaction of 3-substituted isocoumarins (2) with Lawesson's reagent in the presence of toluene under a nitrogen atmosphere. The antimicrobial activities of the newly synthesized products were measured using Gram-negative (Escherichia coli, Salmonella typhi, and Proteus mirabilis) and Gram-positive bacteria (Staphylococcus aureus and Bacillus cereus). Synthesized thioanalogue of isocoumarins showed good antibacterial activity against Proteus mirabilis.

  DOI：

  10.1080/10426500802529507
• 作为产物：
  描述：

  2-碘苯甲酸乙酯, 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 tetrafluoroboric acid 、 二异丙胺 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 为溶剂， 生成 3-(4-methylphenyl)-1H-isochromen-1-one
  参考文献：
  名称：

  Pyrylium Salts via Electrophilic Cyclization:  Applications for Novel 3-Arylisoquinoline Syntheses

  摘要：

  DOI：

  10.1021/jo990810x

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。
• Ruthenium(IV) Intermediates in C−H Activation/Annulation by Weak <i>O</i> -Coordination
  作者：Yu-Feng Liang、Long Yang、Torben Rogge、Lutz Ackermann

  DOI：10.1002/chem.201804734

  日期：2018.11.7

  Ruthenium(IV) complexes were identified as key intermediates of C−H/O−H activations by weak O‐coordination. Thus, the annulations of sulfoxonium ylides by benzoic acids provided expedient access to diversely‐decorated isocoumarins with ample scope. Detailed experimental and computational studies provided strong support for a facile BIES‐C−H activation, along with cyclometalated ruthenium(IV) intermediates

  钌（IV）配合物通过弱O配位被确定为CHH / OH活化的关键中间体。因此，苯甲酸对亚砜基的环化反应可以方便地获得种类繁多，范围广的异香豆素。详细的实验和计算研究为灵活的BIES-C-H活化以及多功能钌（II / IV）催化方案中的环金属化钌（IV）中间体（BIES =碱辅助内部亲电取代）提供了有力的支持。
• 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。
• Rh(III)-Catalyzed Oxidative Coupling of Benzoic Acids with Geminal-Substituted Vinyl Acetates: Synthesis of 3-Substituted Isocoumarins
  作者：Mingliang Zhang、Hui-Jun Zhang、Tiantian Han、Wenqing Ruan、Ting-Bin Wen

  DOI：10.1021/jo502231y

  日期：2015.1.2

  The Rh(III)-catalyzed C–H activation initiated cyclization of benzoic acids with electron-rich geminal-substituted vinyl acetates was described. The reaction was employed to prepare a range of 3-aryl and 3-alkyl substituted isocoumarins selectively.

  描述了Rh（III）催化的C–H活化引发了富含电子的双键取代的乙酸乙烯酯对苯甲酸的环化反应。该反应用于选择性地制备一定范围的3-芳基和3-烷基取代的异香豆素。
• 3-Substituted Isocoumarins as Thymidine Phosphorylase Inhibitors
  作者：Khalid Mohammed Khan、Sumbul Ahmed、Sajjad Hussain、Nida Ambreen/snm、>、Shahnaz Perveen、M. Iqbal Choudhary

  DOI：10.2174/157018010790945805

  日期：2010.5.1

  3-Substituted isocoumarins 1-19 were synthesized and evaluated for their thymidine phosphorylase inhibitory activity. Eight (8) compounds exhibited a varying degree of inhibitory activity towards thymidine phosphorylase from E. coli with IC50 values between 61- 402 iM. The activities were compared with the standard 7-deazaxanthine (IC50 = 39.28 ± 0.76 iM).

  合成了3-取代异香豆素1-19，并评估了它们对大肠杆菌胸苷磷酸化酶的抑制活性。其中8个化合物表现出不同程度的抑制作用，IC50值介于61至402微摩尔之间。将这些活性与标准物质7-去氮黄嘌呤（IC50 = 39.28 ± 0.76微摩尔）进行比较。