1,4-双(4-甲基苯氧基)苯 | 30427-94-2

• 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-双(4-甲基苯氧基)苯
• 英文名称: 1,4-bis(4-methylphenoxy)benzene
• 英文别名: 1,4-Bis-p-tolyloxy-benzol；p-Bis-(p-methylphenoxy)benzol；p-Di-(4-tolyloxy)-benzol；1,4-bis-p-tolyloxy-benzene；Di-O-p-tolyl-hydrochinon；1.4-Di-p-tolyloxy-benzol；Hydrochinon-di-p-tolylaether；1,4-Bis(p-tolyloxy)benzene
• CAS: 30427-94-2
• 化学式: C₂₀H₁₈O₂
• 分子量: 290.362
• InChiKey: BZMWYTDVUYRVEI-UHFFFAOYSA-N

物化性质

• 熔点：
  102-103 °C
• 沸点：
  397.7±30.0 °C(Predicted)
• 密度：
  1.103±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.7
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  1,4-bis[(η(6)-4-methylphenoxy-η(5)-cyclopentadienyl)iron]benzene hexafluorophosphate 以 二氯甲烷 、 乙腈 为溶剂， 以78%的产率得到1,4-双(4-甲基苯氧基)苯
  参考文献：
  名称：

  双（环戊二烯基铁）芳烃配合物：合成和官能化聚芳醚的新途径

  摘要：

  A new development in the chemistry of arenes activated toward S(N)Ar reactions by the cyclopentadienyliron (FeCp+) moiety is presented in this work. A class of diiron complexes of diphenoxybenzenes was prepared in a highly efficient and very mild fashion. Dihydroxyaromatic compounds served as dinucleophiles, allowing for the formation of the diiron complexes. This could be achieved in either a one or two step procedure. A wide variety of dinucleophiles were incorporated into this study, as well as a number of FeCp+ activated arenes. It is shown that these reactions are not inhibited by bulky substituents on either the dinucleophiles or activated arenes. The diiron complexes themselves could also undergo S(N)Ar reactions, provided that the complexed arenes contained a chlorine substituent. This allowed for the functionalization of the complexes with species that could not be introduced directly in their syntheses. The carbon nucleophiles generated from ethyl cyanoacetate or (phenylsulfonyl)acetonitrile could be attached to the complexed ethers in this manner. The FeCp+ moieties were removed easily by photolytic demetalation which allowed for the recovery of a wide range of functionalized diphenoxybenzenes. This methodology is advantageous over all those previously reported and should be a practical route to the synthesis of aromatic ethers.

  DOI：

  10.1021/om00013a055

文献信息

• BASE GENERATOR
  申请人：Eternal Chemical Co., Ltd.

  公开号：US20130172569A1

  公开（公告）日：2013-07-04

  The present invention provides a base generator having the structure of formula (1): wherein R 1 , R 2 , R 3 , R 4 , R 5 , and Y circle around (−)} are defined as in the specification. The base generator of the present invention can be used for imidization of a polyimide precursor, promoting crosslinking of epoxy monomers, or crosslinking of polyurethane or polyurea.

  本发明提供了一种具有公式（1）结构的碱发生器： 其中R1、R2、R3、R4、R5和Ycircle around (−)}如说明书中所定义。本发明的碱发生器可用于聚酰亚胺前体的酰亚胺化，促进环氧单体交联，或聚氨酯或聚脲的交联。
• Solvent-free palladium-catalyzed C–O cross-coupling of aryl bromides with phenols
  作者：Sergey A. Rzhevskiy、Maxim A. Topchiy、Vasilii N. Bogachev、Lidiya I. Minaeva、Ilia R. Cherkashchenko、Konstantin V. Lavrov、Grigorii K. Sterligov、Mikhail S. Nechaev、Andrey F. Asachenko

  DOI：10.1016/j.mencom.2021.04.042

  日期：2021.5

  A new solvent-free procedure for C–O cross-coupling between phenols and aryl bromides comprising of Pd2(dba)3/ButBrettPhos catalytic system is efficient for substrates bearing donor or acceptor, as well as bulky substituents.

  由 Pd 2 (dba) 3 /Bu t BrettPhos 催化体系组成的苯酚和芳基溴化物之间的 C-O 交叉偶联的新无溶剂程序对于带有供体或受体以及庞大取代基的底物是有效的。
• [EN] ALCOHOLS CONTAINING IMIDE MOIETIES AND REACTIVE OLIGOMERS PREPARED THEREFROM<br/>[FR] ALCOOLS CONTENANT DES FRACTIONS IMIDE ET DES OLIGOMÈRES RÉACTIFS PRÉPARÉS À PARTIR DE CEUX-CI
  申请人：NAT STARCH CHEM INVEST

  公开号：WO2009014541A1

  公开（公告）日：2009-01-29

  This invention relates to oligomeric compounds that are prepared by the reaction of a dianhydride with an amiπo-alcohol to yield an imide-diol intermediate, which is then esterified with a carboxylic acid to form a reactive oligomer. An exemplary reaction scheme is in formula (I).

  这项发明涉及通过二酸酐与氨基醇的反应制备寡聚合物化合物，从而产生酰亚胺二醇中间体，然后用羧酸酯化合成反应性寡聚体。一个示例反应方案如公式(I)所示。
• LIQUID CRYSTAL THERMOSET MONOMER OR OLIGOMER, THERMOSETTING LIQUID CRYSTAL POLYMER COMPOSITION COMPRISING THE SAME AND PRINTED CIRCUIT BOARD USING THE SAME
  申请人：Jung Myung Sup

  公开号：US20090224203A1

  公开（公告）日：2009-09-10

  A liquid crystal thermoset (LCT) monomer or oligomer having both ends capped with maleimide having at least one methyl group, represented by Formula 1: wherein R 1 and R 2 are each independently CH 3 or H, and at least one of R 1 and R 2 is a methyl group, and Ar 1 is a divalent organic group containing one or more structural units selected from the group consisting of ester, amide, ester amide, ester imide and ether imide units, and Ar 1 has a molecular weight not greater than 5,000.

  具有两端帽有马来酰亚胺的至少一个甲基基团的液晶热固性（LCT）单体或寡聚物，由式1表示： 其中R1和R2分别独立地为CH3或H，且R1和R2中至少有一个为甲基基团，Ar1为含有选择自酯、酰胺、酯酰胺、酯亚酰胺和醚亚酰胺单位的一种或多种结构单元的二价有机基团，Ar1的分子量不大于5000。
• Ligand-free highly effective iron/copper co-catalyzed formation of dimeric aryl ethers or sulfides
  作者：Xiaoming Qu、Tingyi Li、Yan Zhu、Peng Sun、Hailong Yang、Jincheng Mao

  DOI：10.1039/c1ob05155e

  日期：——

  Highly selective coupling of diiodoarenes with phenols or phenthiols can be performed by using a low-cost, benign character and readily available Fe/Cu catalytic system in the absence of ligands. It is noteworthy that the desired dimeric aryl ethers or sulfides could be obtained in high yields by coupling between diiodoarenes and phenols, or diphenols with aryl iodides.

  可以使用一种低成本、温和且易得的Fe/Cu催化体系，在无配体的条件下，选择性地将二碘芳烃与酚类或硫酚进行偶联。值得注意的是，通过二碘芳烃与酚类或二酚与芳基碘化物之间的偶联，能够以高产率获得所需的二聚芳醚或硫化物。