Di-(p-tolyl)ether von Biphenyl-4,4'-diol | 42095-08-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: Di-(p-tolyl)ether von Biphenyl-4,4'-diol
• 英文别名: 4,4'-bis(4-methylphenoxy)biphenyl；1-Methyl-4-[4-[4-(4-methylphenoxy)phenyl]phenoxy]benzene
• CAS: 42095-08-9
• 化学式: C₂₆H₂₂O₂
• 分子量: 366.459
• InChiKey: SCKJMSOLHSTLCC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.3
• 重原子数：
  28
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.08
• 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：

  4,4'-bis((η6-4-methylphenoxy-η5-cyclopentadienyl)iron)biphenyl hexafluorophosphate 以 二氯甲烷 、 乙腈 为溶剂， 以93%的产率得到Di-(p-tolyl)ether von Biphenyl-4,4'-diol
  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。
• 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。
• Compound having oxadiazole structure and a dehydration-cyclization method for producing the same
  申请人：MORIYAMA Hideki

  公开号：US20090182171A1

  公开（公告）日：2009-07-16

  A compound having an oxadiazole structure which is obtained by dehydration-cyclization of a compound having a carbohydrazide structure using a chemical agent selected from acids and bases. The dehydration-cyclization of the compound having a carbohydrazide structure can be conducted under mild conditions at low cost.

  一种具有氧代唑结构的化合物，通过使用选自酸和碱的化学试剂，通过脱水-环化反应从具有羰基肼结构的化合物获得。具有羰基肼结构的化合物的脱水-环化反应可以在低成本的温和条件下进行。
• POLYIMIDE AND LIQUID CRYSTAL ALIGNMENT FILM THEREOF
  申请人：Chern Yaw-Terng

  公开号：US20080269458A1

  公开（公告）日：2008-10-30

  The present invention provides a polyimide having the formula (II) formed by reacting a dianhydride with the diamine having the formula (I). The polyimide provided by the present invention serves as a material for preparing the liquid crystal aligning film, wherein the liquid crystal aligning film could achieve the pre-tilt angle of 88-90° by containing only less than 5% of the diamine having the formula (I), which could highly lower down the manufacturing cost.

  本发明提供了一种聚酰亚胺，其由二酸酐与具有式(I)的二胺反应形成，所提供的聚酰亚胺用作制备液晶定向膜的材料，其中仅含少于5％的具有式(I)的二胺即可实现预倾角为88-90°的液晶定向膜，这可以大大降低制造成本。