2-((3,5-dimethoxyphenyl)ethynyl)quinoline-3-carbaldehyde | 1256285-93-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: 2-((3,5-dimethoxyphenyl)ethynyl)quinoline-3-carbaldehyde
• 英文别名: 2-[2-(3,5-Dimethoxyphenyl)ethynyl]quinoline-3-carbaldehyde
• CAS: 1256285-93-4
• 化学式: C₂₀H₁₅NO₃
• 分子量: 317.344
• InChiKey: LUEAKMUHYWJGCI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  24
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  48.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-((3,5-dimethoxyphenyl)ethynyl)quinoline-3-carbaldehyde 、 D-半胱氨酸甲酯盐酸盐 在 gold(III) chloride 、 三乙胺 作用下， 以 1,2-二氯乙烷 为溶剂， 以74%的产率得到(12bR)-methyl-5-(3,5-dimethoxyphenyl)-3,12b-dihydro-2Hbenzo[b]thiazolo[2,3-f][1,6]naphthyridine-3-carboxylate
  参考文献：
  名称：

  Stereoselective tandem synthesis of thiazolo fused naphthyridines and thienopyridines from o-alkynylaldehydes via Au(iii)-catalyzed regioselective 6-endo-dig ring closure

  摘要：

  本研究介绍了一种操作简单的方法，即在温和的反应条件下，通过 Au(III) 催化的区域选择性 6-endo-dig 封环反应，使邻炔醛与 L-胱氨酸甲酯盐酸盐发生反应，从而立体选择性地串联合成新型噻唑并萘啶 5a-o 和噻吩并吡啶 8a-e。值得注意的是，带有一个烷基和一个强夺电子硝基的炔烃成功地以良好的收率得到了所需的产物。

  DOI：

  10.1039/c3ob42035c
• 作为产物：
  描述：

  3,5-二甲氧基苯乙炔 、 alkaline earth salt of/the/ methylsulfuric acid 在 bis-triphenylphosphine-palladium(II) chloride 、 三乙胺 作用下， 以 乙腈 为溶剂， 生成 2-((3,5-dimethoxyphenyl)ethynyl)quinoline-3-carbaldehyde
  参考文献：
  名称：

  On Water: Silver-Catalyzed Domino Approach for the Synthesis of Benzoxazine/Oxazine-Fused Isoquinolines and Naphthyridines fromo-Alkynyl Aldehydes

  摘要：

  An operationally simple domino approach for the silver-catalyzed synthesis of oxazine/benzoxazine-fused isoquinolines 5a-q and naphthyridines 6a-v by the reaction of o-alkynyl aldehydes 3a-aa with amines having embedded nucleophiles 4a-d under mild reaction condition in water is described. The reaction shows selective C-N bond formation on the more electrophilic alkynyl carbon resulting in the formation of 6-endo-dig cyclized product. The competitive experiments show the viability of an intramolecular nucleo philic attack over an intermolecular attack of the external nucleophile. This methodology accommodates wide functional group variation, which proves to be useful for structural and biological assessment.

  DOI：

  10.1021/jo4009639

文献信息

• Iodine-Mediated Solvent-Controlled Selective Electrophilic Cyclization and Oxidative Esterification of <i>o</i>-Alkynyl Aldehydes: An Easy Access to Pyranoquinolines, Pyranoquinolinones, and Isocumarins
  作者：Akhilesh K. Verma、Vineeta Rustagi、Trapti Aggarwal、Amit P. Singh

  DOI：10.1021/jo101526b

  日期：2010.11.19

  provides pyrano[4,3-b]quinolines 4a−f, via formation of cyclic iodonium intermediate Q; however, using alcohols as a solvent as well as nucleophile, o-alkynyl esters 5a−y were obtained selectively in good to excellent yields via formation of hypoiodide intermediate R. Subsequently, o-alkynyl esters were converted in to pyranoquinolinones 6a−i and isocoumarin 6j by electrophilic iodocyclization. This

  描述了碘在邻炔基醛的亲电碘环化中在不同溶剂中的化学选择性行为。与CH 2 Cl 2中的I 2与适当的亲核试剂反应生成邻炔基醛3a - t可以通过形成环碘鎓中间体Q生成吡喃并[4,3- b ]喹啉4a - f；但是，使用醇和亲核试剂作为溶剂，通过形成次碘化物中间体，选择性地以良好或优异的收率获得了邻炔基酯5a - y。[R 。随后，通过亲电碘环化将邻炔基酯转化为吡喃喹啉酮6a - i和异香豆素6j。这种发达的氧化酯化反应为从醛3n - p化学选择性合成酯5q - u而不氧化底物中存在的伯醇提供了新途径。
• On Water: Silver-Catalyzed Domino Approach for the Synthesis of Benzoxazine/Oxazine-Fused Isoquinolines and Naphthyridines from<i>o</i>-Alkynyl Aldehydes
  作者：Akhilesh K. Verma、Deepak Choudhary、Rakesh K. Saunthwal、Vineeta Rustagi、Monika Patel、Rakesh K. Tiwari

  DOI：10.1021/jo4009639

  日期：2013.7.5

  An operationally simple domino approach for the silver-catalyzed synthesis of oxazine/benzoxazine-fused isoquinolines 5a-q and naphthyridines 6a-v by the reaction of o-alkynyl aldehydes 3a-aa with amines having embedded nucleophiles 4a-d under mild reaction condition in water is described. The reaction shows selective C-N bond formation on the more electrophilic alkynyl carbon resulting in the formation of 6-endo-dig cyclized product. The competitive experiments show the viability of an intramolecular nucleo philic attack over an intermolecular attack of the external nucleophile. This methodology accommodates wide functional group variation, which proves to be useful for structural and biological assessment.
• Stereoselective tandem synthesis of thiazolo fused naphthyridines and thienopyridines from o-alkynylaldehydes via Au(<scp>iii</scp>)-catalyzed regioselective 6-endo-dig ring closure
  作者：Rajeev R. Jha、Rakesh K. Saunthwal、Akhilesh K. Verma

  DOI：10.1039/c3ob42035c

  日期：——

  An operationally simple approach for the stereoselective tandem synthesis of novel thiazolo fused naphthyridines 5a–o and thienopyridines 8a–e by the reaction of o-alkynylaldehydes with L-cystine methyl ester hydrochloride via Au(III)-catalyzed regioselective 6-endo-dig ring closure under mild reaction conditions is described. It is noteworthy that alkynes bearing an alkyl and a strong electron-withdrawing nitro group successfully afforded the desired products in good yields.

  本研究介绍了一种操作简单的方法，即在温和的反应条件下，通过 Au(III) 催化的区域选择性 6-endo-dig 封环反应，使邻炔醛与 L-胱氨酸甲酯盐酸盐发生反应，从而立体选择性地串联合成新型噻唑并萘啶 5a-o 和噻吩并吡啶 8a-e。值得注意的是，带有一个烷基和一个强夺电子硝基的炔烃成功地以良好的收率得到了所需的产物。