2,5-双(4-甲基苯基)噻吩 | 82366-98-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2,5-双(4-甲基苯基)噻吩
• 英文名称: 2,5-bis(4'-methylphenyl)thiophene
• 英文别名: 2,5-Bis(p-methylphenyl)thiophene；2,5-bis(4-methylphenyl)thiophene；2,5-di(p-tolyl)thiophene；2,5-di-p-tolylthiophene；2,5-di-p-tolyl-thiophene；2,5-Di-p-tolyl-thiophen
• CAS: 82366-98-1
• 化学式: C₁₈H₁₆S
• 分子量: 264.391
• InChiKey: SHSGWTGEPZLVBB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.7
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  28.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  3,4-bis(4-methylphenyl)-1,2,5-oxadiazole-N-oxide 在 diphosphorus pentasulfide 、 溶剂黄146 、 锌 作用下， 生成 2,5-双(4-甲基苯基)噻吩
  参考文献：
  名称：

  Holleman, Recueil des Travaux Chimiques des Pays-Bas, 1887, vol. 6, p. 63,83

  摘要：

  DOI：

文献信息

• Direct C–H Arylation of Thiophenes at Low Catalyst Loading of a Phosphine-Free Bis(alkoxo)palladium Complex
  作者：Yabo Li、Jingran Wang、Mengmeng Huang、Zhiwei Wang、Yusheng Wu、Yangjie Wu

  DOI：10.1021/jo402745b

  日期：2014.4.4

  An efficient phosphine-free direct C–H arylation of thiophenes at the α-position has been developed at low catalyst loading of bis(alkoxo)palladium complex (Cat.I, 0.1–0.2 mol %). The developed synthetic method can be applied to the synthesis of α-aryl/heteroaryl thiophenes from aryl or heteroaryl bromides in good to excellent yields and is compatible with the substrates bearing electron-donating or

  在双（烷氧基）钯配合物（Cat.I，0.1-0.2 mol％）的低催化剂负载下，已开发出一种有效的无磷的噻吩在α位上无膦直接CH芳基化的化合物。所开发的合成方法可用于从芳基或杂芳基溴化物以良好至优异的产率合成α-芳基/杂芳基噻吩，并且与带有给电子或吸电子基团的底物相容。噻吩2位和5位的反应性是相同的，并且在最佳条件下不依赖于空间位阻。该条件还可以以高转化率应用于其他杂环部分，例如苯并噻吩，苯并呋喃和吡咯。
• Synthesis of 2-Aryl- and 2,5-Diarylfurans and Thiophenes by Suzuki - Miyaura Reactions Using Potassium Trifluoroborate Salts and Heteroaryltellurides
  作者：Giancarlo V. Botteselle、Thomas L. S. Hough、Raphael C. Venturoso、Rodrigo Cella、Adriano S. Vieira、Helio A. Stefani

  DOI：10.1071/ch08255

  日期：——

  The Suzuki–Miyaura cross-coupling reaction of 2-(butyltellanyl) or 2,5-bis-(butyltellanyl)furans and thiophenes with potassium aryltrifluoroborate salts catalyzed by palladium afforded 2-aryl- or 2,5-diaryl-furans and thiophenes in moderate to good yields.

  钯催化 2-(丁基碲基)或 2,5-双-(丁基碲基)呋喃和噻吩与芳基三氟硼酸钾盐的 Suzuki-Miyaura 交叉偶联反应得到 2-芳基-或 2,5-二芳基-呋喃和噻吩中等至良好的产量。
• Copper Nanoparticles on Ordered Mesoporous Carbon Nitride Support: a Superior Catalyst for Homo- and Cross-Coupling of Terminal Alkynes under Base-Free Conditions
  作者：Hang Xu、Liangying Wu、Jing Tian、Jun Wang、Peng Wang、Xiyu Niu、Xiaoquan Yao

  DOI：10.1002/ejoc.201901296

  日期：2019.10.24

  A novel heterogeneous catalyst (Cu NPs‐OMCN) was synthesized and utilized as a highly efficient catalyst for homo‐ and cross‐coupling of terminal alkynes under base‐free conditions in ethanol. Various symmetrical and unsymmetrical 1,3‐diynes were obtained with good to excellent yields. Furthermore, the heterogeneous catalyst could be recovered and reused for several times with satisfactory yields.

  合成了一种新型的非均相催化剂（Cu NPs-OMCN），并将其用作高效的催化剂，用于乙醇中无碱条件下末端炔烃的均相和交叉偶联。获得了各种对称和不对称的1,3-二炔，收率良好至极好。此外，多相催化剂可以令人满意的产率被回收并重复使用几次。
• Trisulfur Radical Anion as the Key Intermediate for the Synthesis of Thiophene via the Interaction between Elemental Sulfur and NaO<i>t</i>Bu
  作者：Guoting Zhang、Hong Yi、Hong Chen、Changliang Bian、Chao Liu、Aiwen Lei

  DOI：10.1021/ol503015b

  日期：2014.12.5

  A facile base-promoted sulfur-centered radical generation mode and a single-step protocol for the synthesis of thiophene derivatives using 1,3-diynes via the interaction between elemental sulfur and NaOtBu has been reported. EPR experiments revealed that the trisulfur radical anion acts as a key intermediate of this process. A plausible mechanism has been proposed.

  据报道，一种简便的碱促进的以硫为中心的自由基生成方式和一种通过元素硫与NaO t Bu相互作用使用1,3-二炔合成噻吩衍生物的单步操作方案。EPR实验表明，三硫自由基阴离子是该过程的关键中间体。已经提出了一种合理的机制。
• Trisulfur Radical Anion (S₃^•–) Involved [1 + 2 + 2] and [1 + 3 + 1] Cycloaddition with Aromatic Alkynes: Synthesis of Tetraphenylthiophene and 2-Benzylidenetetrahydrothiophene Derivatives
  作者：Jing-Hao Li、Qi Huang、Shun-Yi Wang、Shun-Jun Ji

  DOI：10.1021/acs.orglett.8b02066

  日期：2018.8.3

  S3•–-mediated [1 + 2 + 2] and [1 + 3 + 1] cycloaddition reactions of aromatic alkynes to give tetraphenylthiophene and 2-benzylidenetetrahydrothiophene derivatives via two C–S bond formations are developed. These two protocols provide new, simple, and straightforward strategies to construct tetraphenylthiophene and 2-benzylidenetetrahydrothiophene derivatives under transition-metal-free conditions

  S 3 •-介导的芳香炔烃的[1 + 2 + 2]和[1 + 3 + 1]环加成反应通过两个CS键形成四苯基噻吩和2-亚苄基四氢噻吩衍生物。这两种方案提供了在无过渡金属条件下构建四苯基噻吩和2-亚苄基四氢噻吩衍生物的新颖，简单和直接的策略。这项研究还扩大了S 3 •在有机反应中的应用。