4,4'-乙二酰二苯甲酸 | 1585-67-7

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 中文名称: 4,4'-乙二酰二苯甲酸
• 英文名称: 4,4'-bis(hydroxycarbonyl)benzil
• 英文别名: 4,4′-oxalyldibenzoic acid；4,4'-oxalyldibenzoic acid；benzil-4,4’-dicarboxylic acid；α,α'-Dioxo-bibenzyl-4,4'-dicarbonsaeure；4,4'-bis(hydroxycarbonyl)benzyl；Benzil-dicarbonsaeure-(4,4')；4.4'-Dicarboxybenzil；4-[2-(4-carboxyphenyl)-2-oxoacetyl]benzoic acid
• CAS: 1585-67-7
• 化学式: C₁₆H₁₀O₆
• 分子量: 298.252
• InChiKey: BQDSQOCMNSRCGT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  22
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  109
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  4,4'-乙二酰二苯甲酸 在 羟胺 作用下， 以 水 、 甲苯 为溶剂， 反应 12.0h， 以90%的产率得到4,4’-dicarboxylic acid benzil dioxime
  参考文献：
  名称：

  Electrocatalytic Hydrogen Evolution from a Cobaloxime-Based Metal–Organic Framework Thin Film

  摘要：

  Molecular hydrogen evolution catalysts (HECs) are synthetically tunable and often exhibit high activity, but they are also hampered by stability concerns and practical limitations associated with their use in the homogeneous phase. Their incorporation as integral linker units in metal-organic frameworks (MOFs) can remedy these shortcomings. Moreover, the extended three-dimensional structure of MOFs gives rise to high catalyst loadings per geometric surface area. Herein, we report a new MOF that exclusively consists of cobaloximes, a widely studied HEC, that act as metallo-linkers between hexanuclear zirconium clusters. When grown on conducting substrates and under applied reductive potential, the cobaloxime linkers promote electron transport through the film as well as function as molecular HECs. The obtained turnover numbers are orders of magnitude higher than those of any other comparable cobaloxime system, and the molecular integrity of the cobaloxime catalysts is maintained for at least 18 h of electrocatalysis. Being one of the very few hydrogen evolving electrocatalytic MOFs based on a redox-active metallo-linker, this work explores uncharted terrain for greater catalyst pathways.

  DOI：

  10.1021/jacs.9b07084
• 作为产物：
  描述：

  4-Cyano-benzoic acid 1,2-bis-(4-cyano-phenyl)-2-oxo-ethyl ester 在 硝酸 作用下， 反应 3.0h， 以70%的产率得到4,4'-乙二酰二苯甲酸
  参考文献：
  名称：

  A New Site Selective Synthesis of Benzoin Esters. Synthesis of Symmetrically and Unsymmetrically Substituted Benzils

  摘要：

  通过酸水解一系列4-苯甲氧基-2-氮杂丁-1,3-二烯，获得了一系列新的苯醇酯，产率较高，且具有位选择性合成。苯醇酯的氧化可制备对称和不对称取代的苯骈酮，这一方法在某些情况下优于以前报道的方法。

  DOI：

  10.1055/s-1988-27712

文献信息

• Isoreticular Linker Substitution in Conductive Metal–Organic Frameworks with Through‐Space Transport Pathways
  作者：Lilia S. Xie、Sarah S. Park、Michał J. Chmielewski、Hanyu Liu、Ruby A. Kharod、Luming Yang、Michael G. Campbell、Mircea Dincă

  DOI：10.1002/ange.202004697

  日期：2020.10.26

  chemistry concepts to electrically conductive three‐dimensional metal–organic frameworks (MOFs) has been challenging, particularly for cases in which strong interactions between electroactive linkers create the charge transport pathways. Here, we report the successful replacement of tetrathiafulvalene (TTF) with a nickel glyoximate core in a family of isostructural conductive MOFs with Mn2+, Zn2+, and Cd2+

  摘要将网状化学概念扩展到导电三维金属有机框架（MOF）一直具有挑战性，特别是对于电活性连接体之间的强相互作用产生电荷传输路径的情况。在此，我们报告了在含锰的同结构导电 MOF 系列中，成功用乙肟酸镍核取代了四硫富瓦烯 (TTF)2+, 锌2+、和镉2+。骨架金属的不同配位环境导致连接体堆叠几何形状和光学性质的变化。单晶电导率数据与沿连接体堆叠方向的电荷传输一致，电导率值仅略低于报道的类似 TTF 材料的电导率值。这些结果作为案例研究，展示了如何将网状化学设计原理扩展到具有显着分子间接触的导电框架。
• Optimized liquid-phase oxidation
  申请人：Wonders George Alan

  公开号：US20060047145A1

  公开（公告）日：2006-03-02

  Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.

  公开了一种优化的工艺和装置，用于更有效和经济地进行可氧化化合物的液相氧化。这种液相氧化是在气泡柱反应器中进行的，可以在相对较低的温度下提供高效的反应。当被氧化的化合物是对二甲苯，氧化反应的产物是粗对苯二甲酸（CTA）时，这种CTA产物可以通过比传统高温氧化工艺更经济的技术进行纯化和分离。
• Fluorescence modulation by fast photochromism of a [2.2]paracyclophane-bridged imidazole dimer possessing a perylene bisimide moiety
  作者：Katsuya Mutoh、Michel Sliwa、Eduard Fron、Johan Hofkens、Jiro Abe

  DOI：10.1039/c8tc02713g

  日期：——

  reversibly control the fluorescent “ON” and “OFF” states. In this study, we demonstrated the red-color fluorescence switching of a perylene bisimide (PBI) derivative by using a fast photochromic [2.2]paracyclophane-bridged imidazole dimer. The transient colored biradical species as the fluorescence quencher is generated upon UV light irradiation. Because the biradical species has broad absorption bands

  单分子成像和超分辨率显微镜技术的发展促进了荧光可转换分子的研究，这对于深入了解细胞器的活动以及纳米和微米级材料的几何形状至关重要。利用光致变色化合物作为光开关触发是可逆地控制荧光灯“ ON”和“ OFF”状态的有效策略。在这项研究中，我们证明了通过使用快速光致变色[2.2]对环环烷桥连的咪唑二聚体实现a双酰亚胺（PBI）衍生物的红色荧光转换。在紫外光照射下产生了作为荧光猝灭剂的瞬时有色双自由基物质。由于双自由基物质在整个可见光和近红外区域（500-900 nm）均具有较宽的吸收带，因此可通过福斯特共振能量转移（FRET）有效地淬灭PBI的荧光。通过在几十毫秒内快速的光致变色循环来切换荧光强度。瞬态双自由基物质在可见光和近红外区域切换荧光的潜在能力将为多色荧光成像开辟新的可能性。
• Esterification of an exchange solvent enriched composition
  申请人：Parker Randolph Kenny

  公开号：US20060264664A1

  公开（公告）日：2006-11-23

  A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.

  提供一种生产富集羧酸组分的方法，包括将含有羧酸的组分与富集进料在富集区接触，以形成富集羧酸组分。本发明还涉及一种方法和由此产生的组分，用于从羧酸组分中去除催化剂，以生产催化剂去除后的组分。
• Enriched terephthalic acid composition
  申请人：Gibson Edward Philip

  公开号：US20060264666A1

  公开（公告）日：2006-11-23

  A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.

  本发明提供了一种生产富集羧酸组分的方法，该方法通过将含有羧酸的组分与富集进料在富集区接触，形成富集羧酸组分。本发明还涉及一种从羧酸组分中去除催化剂以生产后催化剂去除组分的方法和产生的组分。