5-(4-methoxyphenyl)-1-methyl-1H-imidazole | 190377-29-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 5-(4-methoxyphenyl)-1-methyl-1H-imidazole
• 英文别名: 5-(4-methoxy)phenyl-1-methylimidazole；5-(4-Methoxyphenyl)-1-methylimidazole
• CAS: 190377-29-8
• 化学式: C₁₁H₁₂N₂O
• 分子量: 188.229
• InChiKey: SDEHSBXWJYPEBO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  27
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  5-(4-methoxyphenyl)-1-methyl-1H-imidazole 在 N-溴代丁二酰亚胺(NBS) 作用下， 以 乙腈 为溶剂， 反应 1.0h， 以55%的产率得到4-bromo-5-(4-methoxyphenyl)-1-methyl-1H-imidazole
  参考文献：
  名称：

  通过 Pd 催化的 1-甲基-1H-咪唑与芳基溴的直接 C-5 芳基化反应区域选择性合成 4,5-二芳基-1-甲基-1H-咪唑，包括高细胞毒性衍生物

  摘要：

  描述了在 4 位和 5 位具有富电子、电子中性和/或缺电子芳基部分的 1-甲基-1H-咪唑的高度区域选择性合成的通用和有效的三步法。第一步涉及 Pd 催化的市售 1-甲基-1H-咪唑与芳基溴化物的直接 C-5 芳基化，该序列的第二步和第三步涉及所得 5-芳基的选择性 C-4 溴化。 1-甲基-1H-咪唑与NBS，然后是PdCl2(dppf)-催化的5-芳基-4-溴-1-甲基-1H-咪唑和芳基硼酸在相转移条件下的铃木型反应。如此制备的两种 4,5-二芳基-1-甲基-1H-咪唑，可被视为天然存在的考布他汀 A-4 (CA-4) 的 Z 限制类似物，已证明对多种人类肿瘤细胞系具有高度细胞毒性，并且这些衍生物之一已被证明比 CA-4 和迄今为止文献中研究的所有咪唑衍生物更具细胞毒性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany

  DOI：

  10.1002/ejoc.200800738
• 作为产物：
  描述：

  4-甲氧基苯甲醛 在 potassium carbonate 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 生成 5-(4-methoxyphenyl)-1-methyl-1H-imidazole
  参考文献：
  名称：

  Computationally Driven Structure Optimization, Synthesis, and Biological Evaluation of Imidazole-Based Proprotein Convertase Subtilisin/Kexin 9 (PCSK9) Inhibitors

  摘要：

  Proprotein convertase subtilisin/kexin 9 (PCSK9) is responsible for the degradation of the hepatic low-density lipoprotein receptor (LDLR), which in turn regulates the circulating low-density lipoprotein cholesterol (LDL-C) level. For this reason, the PCSK9 inhibition, by small molecules or peptides, is a validated therapeutic approach for fighting hypercholesterolemia and cardiovascular diseases. In this field, we have recently reported an imidazole-based peptidomimetic that has shown PCSK9 inhibitory activity in the micromolar range. Here, by applying advanced computational techniques, the binding mechanism of that imidazole peptidomimetic was predicted. Then, among a small set of poly-imidazole analogs, compounds showing the highest theoretical affinity were suitably synthesized, relying on a van Leusen reaction based multicomponent strategy. One compound (named RIm13) displayed a PCSK9 inhibitory activity 10-fold lower than the template compound, and, remarkably, at a concentration of 1 mu M, it successfully prevented the LDLR degradation mediated by PCSK9 on HepG2 cells. As well as increasing the LDL uptake at the same concentration, RIm13 represents currently one of the most potent small molecules targeting the PCSK9/LDLR protein-protein interaction.

  DOI：

  10.1021/acs.jmedchem.9b00402

文献信息

• Palladium‐Based Catalysts Supported by Unsymmetrical XYC ^–1 Type Pincer Ligands: C5 Arylation of Imidazoles and Synthesis of Octinoxate Utilizing the Mizoroki–Heck Reaction
  作者：Ankur Maji、Ovender Singh、Sain Singh、Aurobinda Mohanty、Pradip K. Maji、Kaushik Ghosh

  DOI：10.1002/ejic.202000211

  日期：2020.5.10

  methyl)phenyl)morpholine H = dissociable proton). Molecular structure of catalysts (C1–C4) were further established by single X‐ray crystallographic studies. The catalytic performance of palladacycles (C1–C4) was explored with the direct Csp2–H arylation of imidazoles with aryl halide derivatives. These palladacycles were also applied for investigating of Mizoroki–Heck reactions with aryl halides and acrylate

  使用简单的锚定配体L 1-4 H（L 1 H = 2-（（（2-（4-‐甲氧基亚苄基）-1-1-苯基肼基）），设计并合成了一系列新的不对称（XYC –1型）Palladacycles（C1 – C4））甲基）吡啶，L 2 H = N，N-二甲基-4-（（2-苯基-2-（吡啶-2-基甲基）肼基）甲基）苯胺，L 3 H = N，N-二乙基-4- （（2-苯基-2-（吡啶-2-基甲基）肼基）甲基）苯胺和L 4 H = 4-（4-（（2-苯基-2-（吡啶-2-基甲基）肼基）甲基）苯基吗啉H =游离质子）。催化剂的分子结构（C1 - C4）通过单X射线晶体学研究进一步确定。通过咪唑与芳基卤化物衍生物的直接Csp 2 -H芳基化研究了palladacycles（C1 - C4）的催化性能。这些palladacycles还用于研究与芳基卤化物和丙烯酸酯衍生物的Mizoroki-Heck反应。在催化循环过
• Palladium–Polypyrrole Nanocomposites Pd@PPy for Direct C–H Functionalization of Pyrroles and Imidazoles with Bromoarenes
  作者：Veronika Zinovyeva、Julien Roger、Jean-Cyrille Hierso、Pierre Bizouard、Christelle Testa

  DOI：10.1055/s-0035-1561113

  日期：——

  nanocomposites (Pd@PPy) with unique combination of high palladium dispersion (nanoparticle size 2.4 nm) and high palladium content (35 wt%) are efficient catalysts for the selective arylation of substituted pyrroles and imidazoles with either activated or deactivated aryl bromides. The performances of the recoverable supported palladium catalyst matches the best performances of homogeneous systems based

  钯-聚吡咯纳米复合材料 (Pd@PPy) 具有高钯分散度（纳米粒径 2.4 nm）和高钯含量（35 wt%）的独特组合，是取代吡咯和咪唑与活化或失活的芳基溴化物选择性芳基化的有效催化剂. 可回收负载钯催化剂的性能与基于 Pd(OAc)2 0.5-0.2 mol% 的均相体系的最佳性能相匹配，并且在很大程度上压倒了经典的 Pd/C 催化剂。
• Mild Palladium-Catalyzed Regioselective Direct Arylation of Azoles Promoted by Tetrabutylammonium Acetate
  作者：Fabio Bellina、Marco Lessi、Chiara Manzini

  DOI：10.1002/ejoc.201300704

  日期：2013.9

  A mild, general, and convenient palladium-catalyzed direct arylation of the 5-position of azoles with aryl bromides, efficiently promoted by tetrabutylammonium acetate, is described. 1-Methylpyrazole, oxazole, and thiazole reacted at 70 °C in N,N-dimethylacetamide by using Pd(OAc)2 as the catalyst precursor. Electron-poor and -rich functional groups, including the free hydroxy group, are well tolerated

  描述了一种温和、通用且方便的钯催化的 5-位唑类与芳基溴化物的直接芳基化反应，由乙酸四丁铵有效促进。通过使用 Pd(OAc)2 作为催化剂前体，1-甲基吡唑、恶唑和噻唑在 N,N-二甲基乙酰胺中在 70 °C 下反应。贫电子和富电子官能团，包括游离羟基，在亲电伙伴中具有良好的耐受性。通过将反应温度提高到 110 °C，也可以非常有效地获得各种 5-芳基-1-甲基咪唑。这种无配体方案已成功应用于两种生物活性天然化合物 balsoxin 和 texaline 的一锅合成，从恶唑开始，通过 5 位和 2 位的顺序直接芳基化。
• Efficient N-heterocyclic carbene palladium(II) catalysts for carbonylative Suzuki-Miyaura coupling reactions leading to aryl ketones and diketones
  作者：Mansur Ibrahim、Imran Malik、Waseem Mansour、Muhammad Sharif、Mohammed Fettouhi、Bassam El Ali

  DOI：10.1016/j.jorganchem.2018.01.028

  日期：2018.3

  N′-substituted imidazolium salts (L1 and L2) and their corresponding diiodopyridinepalladium(II) complexes (C1 and C2) were successfully synthesized and characterized. Reactions of palladium iodide with the newly synthesized N, N′-substituted imidazolium iodides in pyridine afforded the corresponding new palladium-N-heterocyclic carbene pyridine complexes in high yields. The new palladium(II) complex C1 was

  成功合成并表征了新的N，N'-取代的咪唑鎓盐（L1和L2）及其相应的二碘吡啶吡啶钯（II）配合物（C1和C2）。碘化钯与新合成的N，N'-取代的碘化咪唑鎓吡啶在吡啶中的反应以高收率提供了相应的新型钯-N-杂环卡宾吡啶配合物。通过单晶X射线衍射分析表征了新的钯（II）配合物C1。Pd（II）离子键合到吡啶的氮原子，NHC卡宾配体的碳原子和两个碘化物上，导致方形平面几何形状变形。两个Pd-NHC-Py配合物C1和与文献报道的催化体系相比，C2在羰基化的Suzuki-Miyaura偶联反应中显示出更高的催化活性，而催化剂的负载却低得多。
• Direct and Regioselective Introduction of Acetals into Imidazoles at the 2-Position by an Iridium-Catalyzed Reaction with Formates in the Presence of Hydrosilanes
  作者：Yoshiya Fukumoto、Yasuaki Iyori、Naoto Chatani

  DOI：10.1002/ejoc.201700125

  日期：2017.3.27

  of imidazoles with formates in the presence of hydrosilanes as co-reactants, leading to the production of 2-[(alkoxy)(siloxy)methyl]imidazoles, is described. Dimethyl acetylenedicarboxylate (DMAD) was the additive of choice for the reaction, in terms of reaction efficiency. No reaction was observed in the absence of the hydrosilanes. While substituents at the 1- and 5-positions on the imidazole ring

  描述了在氢硅烷作为共反应剂存在下，咪唑与甲酸盐的铱催化反应，导致 2-[(烷氧基)(甲硅烷氧基)甲基]咪唑的生产。就反应效率而言，乙炔二羧酸二甲酯 (DMAD) 是反应的首选添加剂。在不存在氢硅烷的情况下未观察到反应。虽然咪唑环上 1 位和 5 位的取代基不影响反应，但 4 位的取代基极大地阻碍了反应。1-甲基-1,2,4-三唑的区域选择性反应发生在环的sp3和sp2氮原子之间的碳原子上，而不发生在两个sp2氮原子之间 产物通过水解转化为咪唑2-甲醛酸性条件。