苯偏四甲酸 | 476-73-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: 苯偏四甲酸
• 中文别名: 苯四甲酸
• 英文名称: 1,2,3,4-benzenetetracaboxylic acid
• 英文别名: 1,2,3,4-benzenetetracarboxylic acid；benzenetetracarboxylic acid；Benzene-1,2,3,4-tetracarboxylic acid
• CAS: 476-73-3
• 化学式: C₁₀H₆O₈
• 分子量: 254.153
• InChiKey: GCAIEATUVJFSMC-UHFFFAOYSA-N

物化性质

• 熔点：
  264-267℃ (decomposition)
• 沸点：
  357.36°C (rough estimate)
• 密度：
  1.6771 (rough estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  149
• 氢给体数：
  4
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  苯偏四甲酸 以 四氢呋喃 为溶剂， 反应 24.0h， 以74%的产率得到1,2:3,4-benzenetetracarboxylic anhydride
  参考文献：
  名称：

  ｐＨ依存性蛍光化合物

  摘要：

  提供在特定pH范围内发出强荧光的化合物及其前体化合物。 化合物由式（I'）表示：（其中，R表示氢原子或酰基，R1和R2分别独立表示氢原子，氨基或羧基。）【选定图】图1

  公开号：

  JP2016193897A
• 作为产物：
  描述：

  四甲基萘 在 cerium(III) chloride 、 2,2,2-三氯乙醇 、 氧气 作用下， 以 乙腈 为溶剂， 以75%的产率得到苯偏四甲酸
  参考文献：
  名称：

  烷基芳烃的光诱导深度好氧氧化

  摘要：

  氧化是自然界和化学工业中生产含氧化学品的主要化学过程。目前，苯甲酸和苯多羧酸（BPCAs）的工业生产主要以聚烷基苯的深度氧化为主，由于形成消耗臭氧层的溴化溴和对生产设备的腐蚀危害，在环境和经济上都有些不利。 . 在这份报告中，开发了（多）烷基苯的光诱导深度有氧氧化为苯（多）羧酸。CeCl 3被证明是在醇存在下作为氢和电子穿梭的有效HAT（氢原子转移）催化剂。双氧 (O 2) 被发现是唯一的终端氧化剂。在大多数情况下，纯产品很容易通过简单的过滤分离，这意味着大规模实施的优势。该反应提供了从天然丰富的石油原料中生产有价值的精细化学品的理想方案。

  DOI：

  10.1007/s11426-021-1032-7
• 作为试剂：
  描述：

  cerium(III) nitrate hexahydrate 、 alkaline earth salt of/the/ methylsulfuric acid 在 苯偏四甲酸 作用下， 以 乙醇 、 水 为溶剂， 反应 4.0h， 生成 cerium(IV) oxide
  参考文献：
  名称：

  Selective CO ₂ Photoreduction to CH ₄ via Pd ^{δ +} ‐Assisted Hydrodeoxygenation over CeO ₂ Nanosheets

  摘要：

  AbstractHere, noble‐metal‐doped two‐dimensional metal oxide nanosheets are designed to realize selective CO2 photoreduction to CH4. As a prototype, Pd‐doped CeO2 nanosheets are fabricated, where the active sites of Pdδ+ (2<δ<4) and Ce3+−Ov are revealed by quasi in situ X‐ray photoelectron spectra and in situ electron paramagnetic resonance spectra. Moreover, in situ Fourier‐transform infrared spectra of D2O photodissociation and desorption verify the existence of the Pd−OD bond, implying that Pdδ+ sites can participate in water oxidation to deliver H* species for facilitating the protonation of the intermediates. Furthermore, theoretical calculations suggest the Pd doping could regulate the formation energy barrier of the key intermediates CO* and CH3O*, thus making CO2 reduction to CH4 become the favorable process. Accordingly, Pd‐doped CeO2 nanosheets achieve nearly 100 % CH4 selectivity of CO2 photoreduction, with the raising CH4 evolution rate of 41.6 μmol g−1 h−1.

  DOI：

  10.1002/anie.202203249

文献信息

• COLORING CURABLE RESIN COMPOSITION, CURED FILM, COLOR FILTER, METHOD FOR MANUFACTURING COLOR FILTER, SOLID-STATE IMAGING DEVICE, IMAGE DISPLAY DEVICE, COMPOUND, AND CATION
  申请人：FUJIFILM Corporation

  公开号：US20160376234A1

  公开（公告）日：2016-12-29

  The present invention provides a colored curable resin composition that exhibits good heat resistance and durability in a sputtering process, a cured film, a color filter, a method for manufacturing a color filter, a solid-state image device, an image display device, a compound, and a cation. The colored curable resin composition contains a colorant represented by Formula (1), Formula (2), or Formula (3), a resin, a polymerizable compound, and a polymerization initiator. In Formula (1), R 101 and R 102 each independently represent a hydrogen atom or a substituent, R 103 to R 106 each independently represent a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group, R 107 to R 111 each independently represent a hydrogen atom or a substituent, n1 to n4 each independently represent an integer of 0 to 4, n5 represents an integer of 0 to 6, X represents an anion or is not present, and at least one of R 101 , . . . , or R 111 includes an anion; and in the case where R 101 and R 102 represent hydrogen atoms, R 103 represents an aryl group having a substituent at at least the ortho-position.

  本发明提供了一种在溅射工艺中具有良好耐热性和耐久性的着色可固化树脂组合物、固化膜、色滤光器、制造色滤光器的方法、固态图像设备、图像显示设备、化合物和阳离子。该着色可固化树脂组合物含有由公式(1)、公式(2)或公式(3)表示的着色剂、树脂、可聚合化合物和聚合引发剂。在公式(1)中，R101和R102各自独立地表示氢原子或取代基，R103至R106各自独立地表示氢原子、烷基、芳基或杂芳基，R107至R111各自独立地表示氢原子或取代基，n1至n4各自独立地表示0至4的整数，n5表示0至6的整数，X表示阴离子或不出现，且至少R101、…或R111中包括阴离子；且在R101和R102表示氢原子的情况下，R103表示在至少邻位具有取代基的芳基。
• COMPOUND OR ITS TAUTOMER, METAL COMPLEX COMPOUND, COLORED PHOTOSENSITIVE CURING COMPOSITION, COLOR FILTER, AND PRODUCTION
  申请人：MIZUKAWA Yuki

  公开号：US20120238752A1

  公开（公告）日：2012-09-20

  Provided is a colored photosensitive curing composition useful for color filters in primary colors, including blue, green, and red, having a high molar absorption coefficient and allowing a reduction in film thickness and superior color purity and fastness. A colored photosensitive curing composition, comprising, as its colorant, a dipyrromethene-based metal complex compound obtained from a metal or metal compound and a dipyrromethene-based compound represented by the following Formula (I): wherein in Formula (I), R 1 to R 6 each independently represent a hydrogen atom or a substituent group; and R 7 represents a hydrogen or halogen atom, or an alkyl, aryl or heterocyclic group.

  提供的是一种有用于原色彩色滤光片的彩色光敏固化组合物，包括蓝色、绿色和红色，具有高摩尔吸收系数，可减少薄膜厚度，具有优越的颜色纯度和牢固度。 一种彩色光敏固化组合物，包括作为其着色剂的从金属或金属化合物获得的基于二吡咯甲烷的金属配合物化合物和由以下式（I）表示的基于二吡咯甲烷的化合物，其中在式（I）中，R1至R6各自独立地表示氢原子或取代基；R7表示氢或卤素原子，或烷基、芳基或杂环基。
• POLYMER-CARBOHYDRATE CONJUGATES FOR DRUG DELIVERY TECHNOLOGY
  申请人：Wu Nian

  公开号：US20150157721A1

  公开（公告）日：2015-06-11

  The invention comprises compounds, methods of making, and methods of using. The compounds may have a linear or cylic backbone and three or four appended functional groups: one or two lipohilic compounds including sterols or “fat soluble” vitamins, one or two hydrophilic polymer, and one or two carbohydrate. A group of polymer-carbohydrate conjugates having a central backbone and three appended functional groups are disclosed wherein one lipophilic compound is void of both steroid acids. The conjugate may have fatty acids as the primary lipophilic carrier, one hydrophilic polymer, and one carbohydrate. Specific functional groups may be selected for specific applications in formulating pharmaceuticals, cosmetics, nutriceuticals, and the like. Typical coupling reaction of the conjugates may involve one or more or combinations or in series of alkylation including N-alkylation or O-alkylation, etherification, esterification and amidation chemical processes. A variety of linkers between the backbone and functional groups may also be selected to modify the carriers or center backbones for the coupling reactions and optimize performance of the conjugates.

  该发明包括化合物、制备方法和使用方法。这些化合物可能具有线性或环状的骨架，以及三个或四个附加的功能基团：一个或两个疏水化合物，包括固醇或“脂溶性”维生素，一个或两个亲水性聚合物，以及一个或两个碳水化合物。公开了一组具有中心骨架和三个附加功能基团的聚合物-碳水化合物共轭物，其中一个疏水性化合物不含类固醇酸。该共轭物可能以脂肪酸作为主要疏水载体，一个亲水性聚合物和一个碳水化合物。特定的功能基团可以根据在制备药物、化妆品、营养保健品等方面的具体应用而选择。共轭物的典型偶联反应可能涉及一种或多种或组合或串联的烷基化，包括N-烷基化或O-烷基化，醚化，酯化和酰胺化化学过程。还可以选择各种连接剂连接骨架和功能基团之间，以修改载体或中心骨架以进行偶联反应并优化共轭物的性能。
• [EN] AROMATIC COMPOUNDS FROM FURANICS<br/>[FR] COMPOSÉS AROMATIQUES DÉRIVÉS DES FURANIQUES
  申请人：NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO

  公开号：WO2017146581A1

  公开（公告）日：2017-08-31

  Described are methods for preparing phenols, benzene carboxylic acids, esters and anhydrides thereof from furanic compounds by reaction with a dienophile, wherein the furanic compounds are reacted with a hydrazine and/or oxime and then reacted with a dienophile.

  描述了一种从呋喃化合物通过与二烯醚反应制备酚、苯甲酸、酯和酐的方法，其中呋喃化合物与肼和/或肟反应，然后与二烯醚反应。
• [EN] NICOTINE SALTS, CO-CRYSTALS, AND SALT CO-CRYSTAL COMPLEXES<br/>[FR] SELS, CO-CRISTAUX, ET COMPLEXES DE CO-CRISTAUX DE SELS DE NICOTINE
  申请人：REYNOLDS TOBACCO CO R

  公开号：WO2015183801A1

  公开（公告）日：2015-12-03

  The invention provides certain nicotine salts, co-crystals, and salt co-crystals and provides novel polymorphic forms of certain nicotine salts. In particular, nicotine salts with mucic acid, 3,5-dihydroxybenzoic acid, and 2,3-dihydroxybenzoic acid, and crystalline polymorphic forms of nicotine 4-acetamidobenzoate, nicotine gentisate, and nicotine 1-hydroxy-2-naphthoate are described. The invention further provides methods of preparation and characterization of such nicotine salts, co-crystals, and salt co-crystals and polymorphic forms thereof. In addition, tobacco products, including smoking articles, smokeless tobacco products, and electronic smoking articles comprising nicotine salts, co-crystals, and/or salt co-crystals are also provided.

  该发明提供了某些尼古丁盐、共晶和盐共晶，并提供了某些尼古丁盐的新颖多形态形式。具体来说，描述了与粘酸、3,5-二羟基苯甲酸和2,3-二羟基苯甲酸结合的尼古丁盐，以及尼古丁4-乙酰氨基苯甲酸、尼古丁吉替酸和尼古丁1-羟基-2-萘酸的结晶多形态形式。该发明还提供了制备和表征这些尼古丁盐、共晶和盐共晶以及其多形态形式的方法。此外，还提供了含有尼古丁盐、共晶和/或盐共晶的烟草制品，包括吸烟物品、无烟烟草制品和电子吸烟物品。