1-(thiophen-2-yl)-1H-benzo[d]imidazole

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 英文名称: 1-(thiophen-2-yl)-1H-benzo[d]imidazole
• 英文别名: 5-(Benzimidazol-1-yl)thiophene；1-thiophen-2-ylbenzimidazole
• 化学式: C₁₁H₈N₂S
• 分子量: 200.264
• InChiKey: JWRCPEFGIGCBAJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  14
• 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：
  46.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-(thiophen-2-yl)-1H-benzo[d]imidazole 在 正丁基锂 、 potassium carbonate 作用下， 以 四氢呋喃 、 乙醇 、 水 为溶剂， 反应 4.0h， 生成 (1E,4E)-1,5-bis(1-(thiophen-2-yl)-1H-benzo[d]imidazol-2-yl)penta-1,4-dien-3-one
  参考文献：
  名称：

  Optimization of diarylpentadienones as chemotherapeutics for prostate cancer

  摘要：

  Our earlier studies indicate that (1E,4E)-1,5-bis(1-alkyl-1H-imidazol-2-yepenta-1,4-diene-3-ones and (1E,4E)-1,5-bis(1-alkyl-1H-benzo Mimidazol-2-yepenta-1,4-diene-3-ones exhibit up to 121-fold greater antiproliferative potency than curcumin in human prostate cancer cell models, but only 2-10 fold increase in mouse plasma concentrations. The present study aims to further optimize them as anti-prostate cancer agents with both good potency and bioavailability. (1E,4E)-1,5-Bis(1H-imidazol-2-yepenta-1,4-diene-3-one, the potential metabolic product of (1E,4E)-1,5-bis(1-alkyl-1H-imidazol-2-yepenta-1,4-diene-3-ones, was synthesized and evaluated for its anti-proliferative activity. The promising potency of 1,5-bis(1-alkyl-1H-imidazol-2-yepenta-1,4-diene-3-ones was completely abolished by removing the 1-alkyl group, suggesting the critical role of an appropriate group on the N1 position. We then envisioned that N-aryl substitution to exclude the C-H bond on the carbon adjacent to the N1 position (a-H) may increase the metabolic stability. Consequently, seven (1E,4E)-1,5-bis(1-aryl-1H-imidazol-2-yepenta-1,4-dien-3-ones and three (1E,4E)-1,5-bis(1-aryl-1H-benzo [d] imidazol-2-yOpenta-1,4-dien-3-ones, as well as three (1E,4E)-1,5-bis(1-aryl-1H-pyrrolo[3,2-b]pyridine-2-yepenta-1,4-dien-3-ones, were synthesized through a three-step transformation, including N-arylation via Ullmann condensation, formylation, and Horner-Wadsworth-Emmons reaction. Six optimal (1E,4E)-1,5-bis(1-aryl-1H-imidazol-2-yOpenta-1,4-dien-3-ones exhibit 24- to 375-fold improved potency as compared with curcumin. Replacement of the imidazole with bulkier benzoimidazole and 4-azaindole results in a substantial decrease in the potency. (1E,4E)-1,5-Bis(1-(2-methoxyphenyl)-1H-imidazol-2-yOpenta-1,4-dien-3-one (17d) was established as an optimal compound with both superior potency and good bioavailability that is sufficient to provide the therapeutic efficacy necessary to suppress in vivo tumor growth.

  DOI：

  10.1016/j.bmc.2018.08.018
• 作为产物：
  描述：

  2-溴噻吩 、 苯并咪唑 在 copper(ll) sulfate pentahydrate 、 四丁基溴化铵 、 caesium carbonate 、 二甲基乙二醛肟 作用下， 以 水 为溶剂， 反应 24.0h， 以61%的产率得到1-(thiophen-2-yl)-1H-benzo[d]imidazole
  参考文献：
  名称：

  二甲基乙二肟在水中促进咪唑与芳基或杂芳基卤化物的铜催化N-芳基化

  摘要：

  发现CuSO 4 /二甲基乙二肟的组合是一种高效廉价的催化剂体系，用于将咪唑和苯并咪唑与芳基卤化物和杂芳基卤化物进行N芳基化，从而以中等至良好的收率提供相应的产物。

  DOI：

  10.1002/cjoc.201180368

文献信息

• 2-Aminopyrimidine-4,6-diol as an Efficient Ligand for Solvent-Free Copper-Catalyzed N-Arylations of Imidazoles with Aryl and Heteroaryl Halides
  作者：Ye-Xiang Xie、Shao-Feng Pi、Jian Wang、Du-Lin Yin、Jin-Heng Li

  DOI：10.1021/jo061572q

  日期：2006.10.1

  Efficient and solvent-free copper-catalyzed N-arylations of imidazoles with aryl and heteroaryl halides have been demonstrated. In the presence of CuBr, 2-aminopyrimidine-4,6-diol, and TBAF (n-Bu4NF), a variety of imidazoles underwent the N-arylation reaction with aryl and heteroaryl halides smoothly in moderate to excellent yields. Noteworthy is that the reaction is conducted under solvent-free conditions

  已经证明了咪唑与芳基和杂芳基卤化物的高效且无溶剂的铜催化的N-芳基化。在CuBr，2-氨基嘧啶-4,6-二醇和TBAF（n -Bu 4 NF）的存在下，各种咪唑与芳基和杂芳基卤化物的N-芳基化反应均以中等至优异的收率顺利进行。值得注意的是，该反应在无溶剂条件下进行。
• Highly active bidentate N-heterocyclic carbene/ruthenium complexes performing dehydrogenative coupling of alcohols and hydroxides in open air
  作者：Zhi-Qin Wang、Xiao-Sheng Tang、Zhao-Qi Yang、Bao-Yi Yu、Hua-Jing Wang、Wei Sang、Ye Yuan、Cheng Chen、Francis Verpoort

  DOI：10.1039/c9cc03519b

  日期：——

  Eight bidentate NHC/Ru complexes, namely [Ru]-1–[Ru]-8, were designed and prepared. In particular, [Ru]-2 displayed extraordinary performance even in open air for the dehydrogenative coupling of alcohols and hydroxides. Notably, an unprecedentedly low catalyst loading of 250 ppm and the highest TON of 32 800 and TOF of 3200 until now were obtained.

  设计并制备了八种双齿NHC / Ru络合物，即[Ru] -1– [Ru] -8。尤其是，Ru-2在醇和氢氧化物的脱氢偶联中甚至在露天中也表现出非凡的性能。值得注意的是，迄今为止获得了前所未有的低催化剂负载量250 ppm和最高TON 32800和TOF 3200。
• Magnetic nanoparticle-supported proline as a recyclable and recoverable ligand for the CuI catalyzed arylation of nitrogen nucleophiles
  作者：Gagan Chouhan、Dashan Wang、Howard Alper

  DOI：10.1039/b711298j

  日期：——

  Magnetic nanoparticle-supported proline ligand was prepared and used for the CuI catalyzed Ullmann-type coupling reactions of aryl/heteroaryl bromides with various nitrogen heterocycles to form the corresponding N-aryl products in good to excellent yields; furthermore, this magnetic nanoparticle-supported proline ligand could be readily separated using an external magnet and reused without significant loss of activity.

  制备了磁性纳米粒子支撑的脯氨酸配体，并用于CuI催化的Ullmann型偶联反应，将各种氮杂环与芳基/杂芳基溴化物偶联，以良好至优异的产率形成相应的N-芳基产物；此外，这种磁性纳米粒子支撑的脯氨酸配体可以通过外部磁铁轻松分离，并可重复使用而不会显著损失活性。
• <i>N</i>,<i>O</i>-Bidentate ligand-tunable copper(<scp>ii</scp>) complexes as a catalyst for Chan–Lam coupling reactions of arylboronic acids with 1<i>H</i>-imidazole derivatives
  作者：Xuefeng Jia、Pai Peng

  DOI：10.1039/c8ob02254b

  日期：——

  An efficient procedure for Chan–Lam coupling reactions of arylboronic acids with 1H-imidazole derivatives using N,O-bidentate ligand-tunable copper(II) complexes as a catalyst under base-free conditions has been developed. This protocol features mild reaction conditions, high yields and compatibility with different functional groups, providing a direct and facile strategy for the construction of C–N

  已经开发了一种有效的程序，用于在无碱条件下使用N，O-双齿配体可调铜（II）配合物作为催化剂，使芳基硼酸与1 H-咪唑衍生物进行Chan-Lam偶联反应。该方案具有温和的反应条件，高收率和与不同官能团的相容性，为构建C–N键和合成杂环化合物提供了直接而简便的策略。
• Domino <i>N</i>-/<i>C</i>- or <i>N</i>-/<i>N</i>-/<i>C</i>-arylation of imidazoles to yield polyaryl imidazolium salts <i>via</i> atom-economical use of diaryliodonium salts
  作者：Shiqing Li、Hongxu Lv、Yu Yu、Xiuqing Ye、Baisong Li、Songming Yang、Yanru Mo、Xiangfei Kong

  DOI：10.1039/c9cc05237b

  日期：——

  Herein, we disclose a Cu-mediated domino di-/triarylation reaction of imidazoles to efficiently access polyaryl imidazolium salts in a single step by using two aryls as well as an anion of a diaryliodonium salt. The diarylation shows high atom economy and excellent selectivity with unsymmetrical iodonium salts.

  本文中，我们公开了咪唑的Cu介导的多米诺骨牌二/三芳基化反应，可通过使用两个芳基以及二芳基碘鎓盐的阴离子，在一个步骤中有效地获得聚芳基咪唑鎓盐。二芳基化显示出高原子经济性和不对称碘鎓盐的优异选择性。