2-[(4-methoxyphenyl)methyl]-2,5-cyclohexadiene-1,4-dione | 76025-37-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 2-[(4-methoxyphenyl)methyl]-2,5-cyclohexadiene-1,4-dione
• 英文别名: 2-(4-methoxybenzyl)cyclohexa-2,5-diene-1,4-dione；(4-methoxy-benzyl)-[1,4]benzoquinone；(4-Methoxy-benzyl)-[1,4]benzochinon；3,4-Anisyl quinone；2-[(4-methoxyphenyl)methyl]cyclohexa-2,5-diene-1,4-dione
• CAS: 76025-37-1
• 化学式: C₁₄H₁₂O₃
• 分子量: 228.247
• InChiKey: JKBGDXMPKPBVPI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-[(4-methoxyphenyl)methyl]-2,5-cyclohexadiene-1,4-dione 生成 1,4-bis-benzoyloxy-2-(4-methoxy-benzyl)-benzene
  参考文献：
  名称：

  Stolle; Moering, Chemische Berichte, 1904, vol. 37, p. 3487

  摘要：

  DOI：
• 作为产物：
  描述：

  2-(4-methoxybenzyl)hydroquinone 在 potassium dichromate 、 硫酸 作用下， 生成 2-[(4-methoxyphenyl)methyl]-2,5-cyclohexadiene-1,4-dione
  参考文献：
  名称：

  Stolle; Moering, Chemische Berichte, 1904, vol. 37, p. 3487

  摘要：

  DOI：

文献信息

• Radical Benzylation of Quinones via C–H Abstraction
  作者：Jordan D. Galloway、Duy N. Mai、Ryan D. Baxter

  DOI：10.1021/acs.joc.9b01004

  日期：2019.9.20

  Herein we report the development of radical benzylation reactions of quinones using Selectfluor and catalytic Ag(I) initiators. The reaction is believed to proceed via a C–H abstraction mechanism after Ag(I)-mediated reduction of Selectfluor. This reaction occurs under mild conditions and is effective for a variety of quinones and radical precursors bearing primary benzylic carbons. The use of preformed

  本文中，我们报道了使用Selectfluor和催化Ag（I）引发剂对醌进行的自由基苄基化反应的发展情况。在Ag（I）介导的Selectfluor还原后，该反应被认为是通过C–H抽象机制进行的。该反应在温和的条件下发生，并且对于各种带有伯苄基碳的醌和自由基前体是有效的。事实证明，使用预制的Ag（4-OMePy）2 NO 3作为催化剂，可通过减少Selectfluor可利用的不需要的降解途径来有效提高反应效率。
• Catalytic Electrophilic Alkylation of<i>p</i>-Quinones through a Redox Chain Reaction
  作者：Xiao-Long Xu、Zhi Li

  DOI：10.1002/anie.201702885

  日期：2017.7.3

  Allylation and benzylation of p‐quinones was achieved through an unusual redox chain reaction. Mechanistic studies suggest that the existence of trace hydroquinone initiates a redox chain reaction that consists of a Lewis acid catalyzed Friedel–Crafts alkylation and a subsequent redox equilibrium that regenerates hydroquinone. The electrophiles could be various allylic and benzylic esters. The addition

  对苯醌的烯丙基化和苄基化是通过不寻常的氧化还原链反应实现的。机理研究表明，痕量对苯二酚的存在会引发氧化还原链反应，该反应由路易斯酸催化的Friedel-Crafts烷基化反应和随后的氧化还原平衡而重新生成对苯二酚。亲电子试剂可以是各种烯丙基和苄基酯。Hantzsch酯作为引发剂的添加提高了反应效率。
• COMPOSITE SEMITRANSPARENT FILM AND MANUFACTURING METHOD THEREFOR
  申请人：Toray Industries, Inc.

  公开号：EP2327469A1

  公开（公告）日：2011-06-01

  An object of the present invention is to provide a composite semipermeable membrane which has excellent chemical resistance, separation performance, and water permeability, and the composite semipermeable membrane has the following structure. The present invention provides a composite semipermeable membrane in which an separation function layer is formed on a microporous supporting membrane, wherein the separation function layer is formed from (A) a silicon compound in which a reactive group having an ethylenically unsaturated group and a hydrolyzable group are directly bonded to silicon atoms, and (B) a compound having an ethylenically unsaturated group other than the silicon compound, by condensation of the hydrolyzable group of the silicon compound (A) and polymerization of the ethylenically unsaturated group of the silicon compound (A) and the ethylenically unsaturated group of the compound (B) having the ethylenically unsaturated group.

  本发明的目的是提供一种复合半透膜，它具有优异的耐化学性、分离性能和透水性，复合半透膜具有如下结构。 本发明提供了一种在微孔支撑膜上形成分离功能层的复合半透膜，其中分离功能层由 (A) 硅化合物形成，在硅化合物中，具有乙烯不饱和基团和可水解基团的活性基团直接键合到硅原子上、和 (B) 除硅化合物外的具有乙烯不饱和基团的化合物，其形成过程为硅化合物 (A) 的可水解基团与硅化合物 (A) 的乙烯不饱和基团和具有乙烯不饱和基团的化合物 (B) 的乙烯不饱和基团缩合。
• COMPOSITE SEMIPERMEABLE MEMBRANE AND METHOD FOR PRODUCING SAME
  申请人：Toray Industries, Inc.

  公开号：EP2650044A1

  公开（公告）日：2013-10-16

  Provided is a composite semipermeable membrane comprising a microporous support membrane and a separation functional layer formed thereon, wherein the separation functional layer is formed from Compound (A) in which a reactive group(s) having an ethylenically unsaturated group and a hydrolyzable group(s) are bonded directly to a silicon atom, Compound (B) having an ethylenically unsaturated group, the Compound (B) being different from said Compound (A), and Compound (C) having an ethylenically unsaturated group, the Compound (C) being different from said Compound (A) and (B), by condensation of hydrolyzable groups that the Compound (A) has and polymerization of ethylenically unsaturated groups that the Compound (A), the Compound (B), and the Compound (C) have, and the Compound (A), the Compound (B), and the Compound (C) satisfy the relationship of the following equation (I): QA-QC+QB-QC=QA-QB (Qx represents an Alfrey-Price Q value of Compound X). A composite semipermeable membrane having excellent chemical resistivity to chemicals represented by chlorine, separation performance, and water permeability can be provided.

  提供了一种复合半透膜，包括微孔支撑膜和在其上形成的分离功能层，其中分离功能层由以下化合物形成：化合物（A），其中具有乙烯不饱和基团的反应基团和可水解基团直接键合到硅原子上；化合物（B），具有乙烯不饱和基团，所述化合物（B）不同于所述化合物（A）；以及化合物（C），具有乙烯不饱和基团，所述化合物（C）不同于所述化合物（A）和（B）、化合物（A）具有的可水解基团和化合物（A）、化合物（B）和化合物（C）具有的乙烯基不饱和基团的缩合，以及化合物（A）、化合物（B）和化合物（C）具有的乙烯基不饱和基团的聚合，以及化合物（A）、化合物（B）和化合物（C）具有的乙烯基不饱和基团的聚合，满足下式（I）的关系：QA-QC+QB-QC=QA-QB (Qx 代表化合物 X 的 Alfrey-Price Q 值）。 可以提供一种复合半透膜，它对以氯为代表的化学物质具有极佳的耐化学性、分离性能和透水性。
• MULTILAYER SEMIPERMEABLE MEMBRANE
  申请人：Toray Industries, Inc.

  公开号：EP3225299A1

  公开（公告）日：2017-10-04

  The present invention provides a semipermeable membrane which has resistance to oxidizing agents even in the presence of heavy metals and which, despite this, can have salt-removing performance equal to that of semipermeable membranes having poor resistance to oxidizing agents. A coated semipermeable membrane of the invention includes a semipermeable layer and a polymer layer formed on the semipermeable layer, and the polymer layer includes a polymerization product formed by both condensation of hydrolyzable groups possessed by the following compound (A) and polymerization of the compound (A) with the following compound (B): (A) a silicon compound having a silicon atom, a reactive group including an ethylenically unsaturated group directly bonded to the silicon atom, and a hydrolyzable group directly bonded to the silicon atom; and (B) a compound other than the compound (A), which has both a hydrophilic group and an ethylenically unsaturated group.

  本发明提供了一种半透膜，该膜即使在重金属存在的情况下也具有抗氧化性，尽管如此，其除盐性能仍可与抗氧化性差的半透膜相媲美。本发明的涂层半透膜包括半透膜层和在半透膜层上形成的聚合物层，聚合物层包括由下列化合物（A）所具有的可水解基团缩合以及化合物（A）与下列化合物（B）聚合而形成的聚合产物：(A) 具有一个硅原子、一个反应基团（包括直接键合到硅原子上的乙烯不饱和基团）和一个直接键合到硅原子上的可水解基团的硅化合物；以及 (B) 除化合物(A)以外的化合物，该化合物同时具有一个亲水基团和一个乙烯不饱和基团。