2-((4-nitrophenyl)ethynyl)benzaldehyde | 636562-53-3

• 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: 2-((4-nitrophenyl)ethynyl)benzaldehyde
• 英文别名: 2-[2-(4-Nitrophenyl)ethynyl]benzaldehyde
• CAS: 636562-53-3
• 化学式: C₁₅H₉NO₃
• 分子量: 251.241
• InChiKey: PCXBFGZZYVSMSW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  62.9
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-((4-nitrophenyl)ethynyl)benzaldehyde 在 四氢吡咯 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以87%的产率得到2-(4-nitrophenyl)-1H-inden-1-one
  参考文献：
  名称：

  Cleavage and Reassembly of the C═O Bond of 2-Alkynylbenzaldehydes: A Metal-Free Access to Inden-1-ones

  摘要：

  DOI：

  10.1021/acs.joc.1c00780
• 作为产物：
  描述：

  在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 potassium carbonate 、 二异丙胺 作用下， 以 甲醇 、 甲苯 为溶剂， 反应 0.5h， 生成 2-((4-nitrophenyl)ethynyl)benzaldehyde
  参考文献：
  名称：

  Synthesis of Functionalized 1H-Isochromene Derivatives via a Au-Catalyzed Domino Cycloisomerization/Reduction Approach

  摘要：

  A Au-catalyzed versatile and efficient access to 1H-isochromenes is reported. The efficiency of the [AuCl2(Pic)] complex (15 mol %) was demonstrated and allowed a domino cycloisomerization/reduction reaction process starting from a wide range of functionalized ortho-alkynylbenzaldehydes and one example of ortho-alkynylpyridinylaldehyde. The smooth reaction conditions were amenable to aryl- and alkyl-substituted alkynyl derivatives, as well as functionalized halogen and ether moieties, leading to a chemo- and regioselective 6-endo-cyclization with good to excellent yields.

  DOI：

  10.1021/acs.orglett.5b03146

文献信息

• Synthesis of <i>N</i>-(Isoquinolin-1-yl)sulfonamides via Ag₂O-Catalyzed Tandem Reaction of <i>ortho</i>-Alkynylbenzaldoximes with Benchtop Stabilized Ketenimines
  作者：Sepideh Hayatgheybi、Hormoz Khosravi、Hossein Zahedian Tejeneki、Frank Rominger、Hamid Reza Bijanzadeh、Saeed Balalaie

  DOI：10.1021/acs.orglett.1c00937

  日期：2021.5.7

  this project, a moderately efficient approach to multisubstituted N-(isoquinolin-1-yl)sulfonamide derivatives was illustrated, utilizing ortho-alkynylbenzaldoximes and zwitterionic ketenimine salts in a tandem reaction catalyzed by silver oxide. The oxophilicity of Ag2O, along with its nature as Lewis acid, pave the way for a smooth [3 + 2] cycloaddition between isoquinoline N-oxides and ketenimine species

  在该项目中，通过在氧化银催化的串联反应中使用邻炔基苯甲醛肟和两性离子烯酮亚胺盐，说明了一种中等有效的多取代N- (异喹啉-1-基)磺酰胺衍生物方法。Ag 2 O的亲氧性及其作为路易斯酸的性质为异喹啉N氧化物和烯酮亚胺之间的 [3 + 2] 环加成顺利进行铺平了道路，这是该反应的关键步骤。DFT 计算表明硝酮和烯酮亚胺的 1,3-偶极环加成通过选择性逐步机制进行。
• A metal-free tandem dehydrogenative α-arylation reaction of propargylic alcohols with 2-alkynylbenzaldoximes toward the synthesis of α-(4-bromo-isoquinolin-1-yl)-propenone skeletons
  作者：Khalil Alatat、Alireza Abbasi Kejani、Ali Nikbakht、Hamid Reza Bijanzadeh、Saeed Balalaie

  DOI：10.1039/d1ob02114a

  日期：——

  A tandem reaction of 2-alkynylbenzaldoximes with propargylic alcohols has been developed for the synthesis of α-(4-bromo-isoquinolin-1-yl)-propenones. Employing 2-alkynylbenzaldoximes as a precursor in the presence of Br2 generates 4-bromo-isoquinoline-N-oxides. Subsequently, dehydroxylation of propargylic alcohols gives carbocation intermediates, which are trapped using the N-oxides, affording aryl-substituted

  2-炔基苯甲醛肟与炔丙醇的串联反应已被开发用于合成 α-(4-bromo-isoquinolin-1-yl)-propenones。在 Br 2存在下使用 2-炔基苯甲醛肟作为前体生成 4-溴-异喹啉-N-氧化物。随后，炔丙醇的脱羟基得到碳正离子中间体，这些中间体被N-氧化物捕获，得到芳基取代的 α-烯酮。
• Copper(ii)-catalyzed cascade approach for the synthesis of pyrrolo[2,1-f][1,2,4]triazine-fused isoquinolines
  作者：Jianyang Chen、Bo Liu、Yanhong Chen、Qian He、Chunhao Yang

  DOI：10.1039/c3ra47324d

  日期：——

  We report herein a one-pot copper(II)-catalyzed coupling-cyclization leading to small molecules based on a novel structural motif, i.e. the pyrrolo[2,1-f][1,2,4]triazine moiety fused with an isoquinoline ring. The reaction is easy to perform in good to excellent yields with high atom economy and exhibits a broad substrate scope.

  我们在这里报告一锅铜（II）催化偶联环化导致基于一种新型结构基序的小分子，即与异喹啉融合的吡咯并[2,1- f ] [1,2,4]三嗪部分戒指。该反应易于以高原子经济性以高至优异的收率进行，并显示出广泛的底物范围。
• The Reaction ofo-Alkynylarene and Heteroarene Carboxaldehyde Derivatives with Iodonium Ions and Nucleophiles: A Versatile and Regioselective Synthesis of 1H-Isochromene, Naphthalene, Indole, Benzofuran, and Benzothiophene Compounds
  作者：José Barluenga、Henar Vázquez-Villa、Isabel Merino、Alfredo Ballesteros、José M. González

  DOI：10.1002/chem.200501505

  日期：2006.7.24

  adapted to accomplish the synthesis of indole, benzofuran, and benzothiophene derivatives (23, 27, and 28, respectively). The three patterns of reactivity observed for the o-alkynylbenzaldehyde derivatives with IPy(2)BF(4) stem from a common iodinated isobenzopyrylium ion intermediate, A, that evolves in a different way depending on the nucleophile present in the reaction medium. A mechanism is proposed

  邻炔基苯甲醛1与不同的醇，甲硅烷基化的亲核试剂5，富电子芳烃10和杂芳烃12在试剂IPy（2）BF（4）的存在下在室温下反应，得到官能化的4-碘-1H -异丁烯2、6、11和13以区域选择性的方式。当炔烃16和烯烃19和20用作亲核试剂时，发生区域选择性的苯并环化反应，分别形成1-碘代萘17和1-萘基酮18。而且，后一种方法已经适应于完成吲哚，苯并呋喃和苯并噻吩衍生物的合成（分别为23、27和28）。观察到的邻炔基苯甲醛衍生物与IPy（2）BF（4）的三种反应模式源自共同的碘化异苯并吡啶离子中间体A 取决于反应介质中存在的亲核试剂，其以不同的方式进化。提出了一种机理，并讨论了根据亲核试剂类型观察到的不同反应途径。此外，通过NMR光谱监测邻己基苯甲醛1b与苯乙烯的反应。已分离出化合物III，它是不存在酸时常见中间体的静止状态。还已经测试了其在酸性介质中的演化，从而为提出的机制提供了支持。分离
• Cyclization of Carbonyl Groups onto Alkynes upon Reaction with IPy₂BF₄ and Their Trapping with Nucleophiles:  A Versatile Trigger for Assembling Oxygen Heterocycles
  作者：José Barluenga、Henar Vázquez-Villa、Alfredo Ballesteros、José M. González

  DOI：10.1021/ja0355372

  日期：2003.7.1

  Iodonium ions liberated from bis(pyridine)iodonium(I) tetrafluoroborate react with ortho-alkynyl-substituted carbonyl compounds and different nucleophiles to give valuable iodinated heterocycles at room temperature, through a new and metal-free reaction sequence. Interestingly, the nature of the nucleophile can be widely modified, and not only alcohols but also several carbon-based nucleophiles can

  从双（吡啶）碘鎓（I）四氟硼酸盐释放的碘鎓离子与邻炔基取代的羰基化合物和不同的亲核试剂在室温下通过新的无金属反应序列反应生成有价值的碘化杂环。有趣的是，亲核试剂的性质可以被广泛修改，不仅可以很好地使用醇，还可以很好地使用几种碳基亲核试剂。