3-(4-methoxyphenyl)-2,5-diphenylfuran | 36846-09-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 呋喃
• 英文名称: 3-(4-methoxyphenyl)-2,5-diphenylfuran
• CAS: 36846-09-0
• 化学式: C₂₃H₁₈O₂
• 分子量: 326.395
• InChiKey: RQDBCCSUIQHSLB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.9
• 重原子数：
  25
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.04
• 拓扑面积：
  22.4
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  甲氧苯胺 在 palladium diacetate 、 苯甲酸 作用下， 以 甲苯 为溶剂， 反应 24.0h， 生成 3-(4-methoxyphenyl)-2,5-diphenylfuran
  参考文献：
  名称：

  Palladium-Catalyzed Condensation of N-Aryl Imines and Alkynylbenziodoxolones To Form Multisubstituted Furans

  摘要：

  A palladium(II) catalyst promotes condensation of an N-aryl imine and an alkynylbenziodoxolone derivative to afford a multisubstituted furan, whose substituents are derived from the alkynyl moiety (2-position), the imine (3- and 4-positions), and the 2-iodobenzoate moiety (5-position), along with an N-arylformamide under mild conditions. The 2-iodophenyl group of the furan product serves as a versatile handle for further transformations. A series of isotope-labeling experiments shed light on the bond reorganization process in this unusual condensation reaction, which includes cleavage of the C-C triple bond and fragmentation of the carboxylate moiety.

  DOI：

  10.1021/ja5059795

文献信息

• Zirconium-redox-shuttled cross-electrophile coupling of aromatic and heteroaromatic halides
  作者：Ting-Feng Wu、Yue-Jiao Zhang、Yue Fu、Fang-Jie Liu、Jian-Tao Tang、Peng Liu、F. Dean Toste、Baihua Ye

  DOI：10.1016/j.chempr.2021.06.007

  日期：2021.7

  palladium-catalyzed processes. The zirconaaziridine-mediated palladium (ZAPd)-catalyzed reaction shows excellent compatibility with various functional groups and diverse heteroaromatic scaffolds. In accord with density functional theory (DFT) calculations, a redox transmetallation between the oxidative addition product and the zirconaaziridine is proposed as the crucial elementary step. Thus, cross-coupling selectivity

  过渡金属催化的交叉亲电偶联 (XEC) 是锻造 C(sp 2 )–C(sp 2 ) 的有力工具) 联芳基分子中来自丰富芳族卤化物的键。虽然通过多金属 XEC 合成不对称联芳基化合物具有很高的合成价值，但两种杂芳族卤化物的选择性 XEC 仍然难以捉摸且具有挑战性。在这里，我们报告了一种均相 XEC 方法，该方法依赖于锆氮丙啶配合物作为双钯催化过程的穿梭。锆氮丙啶介导的钯 (ZAPd) 催化反应显示出与各种官能团和各种杂芳族支架的良好相容性。根据密度泛函理论 (DFT) 计算，氧化加成产物和锆氮丙啶之间的氧化还原金属转移被认为是关键的基本步骤。因此，使用单一过渡金属催化剂的交叉偶联选择性由 Pd(0) 氧化加成到芳族卤化物的相对速率控制。总体而言，组合还原剂和金属转移剂的概念为过渡金属还原偶联催化的发展提供了机会。
• A facile approach to highly functional trisubstituted furans via intramolecular Wittig reactions
  作者：Ko-Wei Chen、Siang-en Syu、Yeong-Jiunn Jang、Wenwei Lin

  DOI：10.1039/c0ob00912a

  日期：——

  An efficient and mild synthesis of trisubstituted furans, starting from α,β-unsaturated ketones, tributylphosphine, and acyl chlorides, is described. The strategy employs the intramolecular Wittig protocol as a key step to install the crucial furan ring, leading to a wide variety of highly functional furans in one step.

  描述了一种高效温和的合成三取代呋喃的方法，起始材料为α,β-不饱和酮、三丁基膦和酰氯。该策略采用了分子内Wittig反应作为关键步骤，引入了重要的呋喃环，一步合成了多种高度功能化的呋喃化合物。
• Oxidative Cross-Coupling of Allenyl Ketones and Organoboronic Acids: Expeditious Synthesis of Highly Substituted Furans
  作者：Ying Xia、Yamu Xia、Rui Ge、Zhen Liu、Qing Xiao、Yan Zhang、Jianbo Wang

  DOI：10.1002/anie.201400500

  日期：2014.4.7

  Allenyl ketones are employed as coupling partners in palladium‐catalyzed oxidative cross‐coupling reactions with organoboronic acids. This reaction constitutes an efficient methodology for the synthesis of highly substituted furan derivatives. Palladium‐carbene migratory insertion is proposed as the key step in this transformation.

  烯丙基酮在钯催化的与有机硼酸的氧化交叉偶联反应中用作偶联伙伴。该反应构成了合成高度取代的呋喃衍生物的有效方法。钯-卡宾迁移插入被提议为这一转变的关键步骤。
• Modular Synthesis of Multisubstituted Furans through Palladium-Catalyzed Three-Component Condensation of Alkynylbenziodoxoles, Carboxylic Acids, and Imines
  作者：Junliang Wu、Naohiko Yoshikai

  DOI：10.1002/anie.201504687

  日期：2015.9.14

  regiocontrolled synthesis of a multisubstituted furan is achieved through Pd(OAc)2‐catalyzed room‐temperature condensation of an alkynylbenziodoxole, a carboxylic acid, and an enolizable ketimine, which contribute to C1, CO, and C2 fragments, respectively, to the furan skeleton. The reaction tolerates a broad range of functional groups in each of the reaction components, and enables highly modular and flexible

  多取代呋喃的轻度和区域控制合成是通过Pd（OAc）2催化的炔基苯并恶唑，羧酸和可烯化的酮亚胺在室温下的缩合反应实现的，它们分别促成C1，CO和C2片段的形成。呋喃骨架。该反应可耐受每种反应组分中的各种官能团，并能够高度模块化和灵活地合成各种取代的呋喃。该反应对于快速生成三芳基和四芳基呋喃以及含呋喃的低聚亚芳基特别有效，而无需依赖常规的交叉偶联化学反应。
• Base-catalysed [3 + 2] cycloaddition of propargylamines and aldehydes to substituted furans
  作者：Jinhai Shen、Jing Zhao、Bing Hu、Yangxin Chen、Longqiao Wu、Qihua You、Li Zhao

  DOI：10.1039/c7gc03618c

  日期：——

  A base-catalysed [3 + 2] cycloaddition reaction of propargylamines and aldehydes for the regiospecific synthesis of substituted furans under metal-free conditions is developed. Propargylamines are used as allenyl anion equivalents and applied in [3 + 2] cycloaddition reactions with aldehydes. Various substituted furans are provided up to 91% yield for 28 examples.

  开发了在无金属条件下炔丙基胺和醛的碱催化[3 + 2]环加成反应，用于取代呋喃的区域特异性合成。炔丙基胺用作烯基阴离子的等价物，并用于与醛的[3 + 2]环加成反应中。对于28个实例，提供了高达91％产率的各种取代呋喃。