1,4-二甲基-2-苯氧基苯 | 62787-15-9

• 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: 1,4-二甲基-2-苯氧基苯
• 英文名称: 2,5-dimethyldiphenyl ether
• 英文别名: 1,4-dimethyl-2 phenoxybenzene；2,5-Dimethylphenyl phenyl ether；1,4-dimethyl-2-phenoxybenzene
• CAS: 62787-15-9
• 化学式: C₁₄H₁₄O
• 分子量: 198.265
• InChiKey: CBFVCGWBMSNUQU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2,5-二甲基苯酚 、 三苯基铋 在 copper diacetate 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 以82%的产率得到1,4-二甲基-2-苯氧基苯
  参考文献：
  名称：

  铜介导的三价Arylbismuth试剂通过苯酚的O-芳基化反应合成高度官能化的二芳基醚

  摘要：

  高度官能化二芳基醚是由铜制备（II），乙酸介导的O-芳基化使用三价organobismuthanes酚的反应。该反应简单的条件下进行，并容许的官能团的广泛的多样性的苯酚和对有机铋试剂。通过在氧气气氛下进行反应，可以使用亚化学计量的催化剂。也报道了吡啶酮的N-芳基化。

  DOI：

  10.1002/chem.201303684

文献信息

• Maghemite-Copper Nanocomposites: Applications for Ligand-Free Cross-Coupling (C−O, C−S, and C−N) Reactions
  作者：Rakesh K. Sharma、Rashmi Gaur、Manavi Yadav、Anuj K. Rathi、Jiri Pechousek、Martin Petr、Radek Zboril、Manoj B. Gawande

  DOI：10.1002/cctc.201500546

  日期：2015.11

  A magnetically retrievable, efficient, and benign maghemite‐Cu nanocatalyst was synthesized from inexpensive precursors and applied for C−O, C−N, and C−S bond‐formation reactions. The obtained maghemite‐Cu nanocatalyst was characterized by various techniques such as XRD, X‐ray photoelectron spectroscopy, field‐emission gun SEM with energy‐dispersive spectroscopy, atomic absorption spectroscopy, TEM

  一种磁性可回收，高效且良性的磁赤铁矿-铜纳米催化剂是由廉价的前体合成的，并用于C-O，C-N和C-S键形成反应。所获得的磁赤铁矿-铜纳米催化剂通过多种技术进行了表征，例如XRD，X射线光电子能谱，具有能量色散能谱的场发射枪SEM，原子吸收能谱，TEM，高角度环形暗场扫描透射电子显微镜， FTIR光谱和Mössbauer光谱。优异的催化活性，易于回收和可重复使用而不会显着损失产率，使得本方案高度可持续以应对工业和环境问题。
• A New Biarylphosphine Ligand for the Pd-Catalyzed Synthesis of Diaryl Ethers under Mild Conditions
  作者：Luca Salvi、Nicole R. Davis、Siraj Z. Ali、Stephen L. Buchwald

  DOI：10.1021/ol202955h

  日期：2012.1.6

  A new bulky biarylphosphine ligand (L8) has been developed that allows the Pd-catalyzed C–O cross-coupling of a wide range of aryl halides and phenols under milder conditions than previously possible. A direct correlation between the size of the ligand substituents in the 2′, 4′, and 6′ positions of the nonphosphine containing ring and the reactivity of the derived catalyst system was observed. Specifically

  已经开发出一种新的庞大的联芳基膦配体 ( L8 )，它允许在比以前更温和的条件下，Pd 催化的 C-O 交叉偶联广泛的芳基卤化物和苯酚。观察到含非膦环的 2'、4' 和 6' 位置的配体取代基的大小与衍生催化剂体系的反应性之间存在直接相关性。具体而言，偶联速率随着这些取代基的大小而增加。
• Novel Electron-Rich Bulky Phosphine Ligands Facilitate the Palladium-Catalyzed Preparation of Diaryl Ethers
  作者：Attila Aranyos、David W. Old、Ayumu Kiyomori、John P. Wolfe、Joseph P. Sadighi、Stephen L. Buchwald

  DOI：10.1021/ja990324r

  日期：1999.5.1

  A general method for the palladium-catalyzed formation of diaryl ethers is described. Electron-rich, bulky aryldialkylphosphine ligands, in which the two alkyl groups are either tert-butyl or 1-adamantyl, are the key to the success of the transformation. A wide range of electron-deficient, electronically neutral and electron-rich aryl bromides, chlorides, and triflates can be combined with a variety

  描述了钯催化形成二芳基醚的一般方法。富含电子的、庞大的芳基二烷基膦配体，其中两个烷基是叔丁基或 1-金刚烷基，是转化成功的关键。使用氢化钠或磷酸钾作为碱，在 100 °C 的甲苯中，可以将各种缺电子、电子中性和富电子的芳基溴化物、氯化物和三氟甲磺酸酯与各种酚结合。膦配体庞大而碱性的性质被认为是提高二芳基醚从钯中还原消除的速率的原因。
• METHOD FOR MANUFACTURING CONJUGATED AROMATIC COMPOUND
  申请人：Oda Seiji

  公开号：US20110275859A1

  公开（公告）日：2011-11-10

  A method for manufacturing a conjugated aromatic compound comprising reacting an aromatic compound (A) wherein one or two leaving groups selected from the group consisting of an iodine atom, a bromine atom and a chlorine atom are bonded to an aromatic ring and the aromatic compound (A) does not have (c1) a group represented by the following formula (10): wherein A 1 represents a C1-C20 alkoxy group etc.; (g1) a C1-C20 alkyl group which may be substituted with a fluorine atom etc.; and (h1) a C2-C20 acyl group which may be substituted with a fluorine atom etc., at the neighboring carbon atom to the carbon atom to which the leaving group is bonded, with an aromatic compound (A) having the same structure as that of the above-mentioned aromatic compound (A) or an aromatic compound (B) wherein the aromatic compound (B) is structurally different from the above-mentioned aromatic compound (A), one or two leaving groups selected from the group consisting of an iodine atom, a bromine atom and a chlorine atom are bonded to an aromatic ring and the aromatic compound (B) does not have the above-mentioned (c1), (g1) and (h1) at the neighboring carbon atom to the carbon atom to which the leaving group is bonded, in the presence of (i) a nickel compound, (ii) a metal reducing agent, (iii) at least one ligand (L1) selected from the group consisting of a 2,2′-bipyridine compound having at least one electron-withdrawing group and having no substituent at 3-, 6-, 3′- and 6′-positions, and a 1,10-phenanthroline compound having at least one electron-withdrawing group and having no substituent at 2- and 9-positions, and (iv) at least one ligand (L2) selected from the group consisting of a 2,2′-bipyridine compound having at least one electron-releasing group and having no substituent at 3-, 6-, 3′- and 6′-positions, and a 1,10-phenanthroline compound having at least one electron-releasing group and having no substituent at 2- and 9-positions.

  一种制备共轭芳香化合物的方法，包括将含有一个或两个离去基团的芳香化合物（A）与含有相同结构的上述芳香化合物（A）或结构不同的芳香化合物（B）反应，其中这些离去基团选自碘原子、溴原子和氯原子，与芳香环结合，而芳香化合物（A）没有以下式（10）所代表的基团：其中A1代表C1-C20烷氧基等；（g1）代表C1-C20烷基基团，可能被氟原子等取代；以及（h1）代表C2-C20酰基基团，可能被氟原子等取代，与离去基团结合的碳原子的相邻碳原子处没有上述（c1）、（g1）和（h1），在（i）镍化合物、（ii）金属还原剂、（iii）从2,2′-联吡啶化合物和1,10-邻菲啰啉化合物中选择的至少一种配体（L1），具有至少一个吸电子基团且在3-、6-、3′-和6′-位置没有取代基，以及（iv）从2,2′-联吡啶化合物和1,10-邻菲啰啉化合物中选择的至少一种配体（L2），具有至少一个释电子基团且在3-、6-、3′-和6′-位置没有取代基团的情况下，在上述离去基团结合的碳原子的相邻碳原子处进行反应。
• Regiospecific Reductive Elimination from Diaryliodonium Salts
  作者：Bijia Wang、Joseph W. Graskemper、Linlin Qin、Stephen G. DiMagno

  DOI：10.1002/anie.201000695

  日期：2010.6.1

  Out‐of‐plane steric bulk furnished by a cyclophane substituent on iodine(III) strongly destabilizes the transition state in the reductive elimination from diaryliodonium salts and leads to regiochemical control (dubbed SECURE), as is demonstrated by computational and experimental studies. This approach should be general for high‐valent main‐group and transition metal ions. X=N3, OAc, PhO, CF3CH2O,

  正如计算和实验研究所证明的那样，碘（III）上的环芳取代基提供的面外空间体积强烈地破坏了二芳基碘鎓盐还原消除过程中的过渡态的稳定性，并导致区域化学控制（称为“安全”）。这种方法对于高价主族和过渡金属离子应该是通用的。 X=N 3 、OAc、PhO、CF 3 CH 2 O、SCN、PhS。