terephthalic anhydride | 18431-45-3

• 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: terephthalic anhydride
• 英文别名: 4-(4-Carboxybenzoyl)oxycarbonylbenzoic acid
• CAS: 18431-45-3
• 化学式: C₁₆H₁₀O₇
• 分子量: 314.251
• InChiKey: JXEFCISGMLZLDG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  23
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  118
• 氢给体数：
  2
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  4-(氯甲酰基)苯甲酸 在 吡啶 、 三氯三氟丙酮 、 水 作用下， 以 水 、 甲苯 为溶剂， 反应 0.5h， 以80%的产率得到terephthalic anhydride
  参考文献：
  名称：

  Facile anhydride synthesis using trichlorotrifluoroacetone hydrate

  摘要：

  DOI：

  10.1021/jo00367a034

文献信息

• CARBAZOLYL MONOMERS AND POLYMERS
  申请人：Ye Qing

  公开号：US20080138625A1

  公开（公告）日：2008-06-12

  The invention provides compounds of formula I wherein R is H or alkyl; R 1 , R 2 , and R 4 are independently at each occurrence a C 1 -C 20 aliphatic radical, a C 3 -C 20 aromatic radical, or a C 3 -C 20 cycloaliphatic radical; R 3 and R 5 are independently at each occurrence hydrogen, a C 1 -C 20 aliphatic radical, a C 3 -C 20 aromatic radical, or a C 3 -C 20 cycloaliphatic radical; and a, b and d are independently 0 or an integer ranging from 1 to 3. The invention further provides polymers derived from compounds of formula I, said polymers may be polyesters, polyethers, polycarbonates, polyestercarbonates, polyetherketones, polyethersulfones, and the like. Compounds and polymers of the invention find use in light emitting devices.

  该发明提供了以下式I的化合物其中R为H或烷基；R1、R2和R4在每次出现时独立地为C1-C20脂肪基、C3-C20芳香基或C3-C20环脂肪基；R3和R5在每次出现时独立地为氢、C1-C20脂肪基、C3-C20芳香基或C3-C20环脂肪基；a、b和d独立地为0或范围从1到3的整数。该发明还提供了从式I的化合物衍生的聚合物，这些聚合物可以是聚酯、聚醚、聚碳酸酯、聚酯碳酸酯、聚醚酮、聚醚砜等。该发明的化合物和聚合物在发光器件中得到应用。
• [EN] COMPOSITIONS AND METHODS FOR INHIBITING GROUP II INTRON RNA<br/>[FR] COMPOSITIONS ET MÉTHODES POUR INHIBER DES ARN D'INTRON DE GROUPE II
  申请人：UNIV YALE

  公开号：WO2019147894A1

  公开（公告）日：2019-08-01

  The present invention provides compositions and methods for inhibiting group II intron splicing for treating or preventing a disease or disorder associated with an organism harboring an active group II intron. The present invention also provides compositions and methods for inhibiting group II intron splicing for inhibiting, preventing or reducing growth of an organism harboring an active group II intron.

  本发明提供了用于抑制II类内含子剪接的组合物和方法，用于治疗或预防与携带活跃II类内含子的生物体相关的疾病或紊乱。本发明还提供了用于抑制II类内含子剪接，以抑制、预防或减少携带活跃II类内含子的生物体生长的组合物和方法。
• Organophotoreceptor with charge transport compound having an epoxy group
  申请人：——

  公开号：US20040081903A1

  公开（公告）日：2004-04-29

  This invention relates to a novel organophotoreceptor that comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having a) a novel charge transport compound having the formula 1 where X is a divalent hydrocarbon group of 1 to 30 carbon atoms, or a divalent hydrocarbon group of 1 to 30 carbon atoms where there is at least one substitution of a carbon atom by a heteroatom provided that no two heteroatoms may be adjacent within the backbone of an aliphatic divalent hydrocarbon radical, R 1 is an aryl group or a heterocyclic group, R 2 is a (N,N-disubstituted)arylamine group, and R 3 is an epoxy group; and (b) a charge generating compound. The epoxy group can be reacted with a functional group within the polymer to form a polymeric charge transport compound either directly or through a crosslinking agent.

  这项发明涉及一种新型的有机光感受器，包括具有电导基底和电导元件的电导基底上的光导元件，所述光导元件具有a) 具有以下结构式1的新型电荷传输化合物，其中X是1至30个碳原子的二价碳氢基团，或者是1至30个碳原子的二价碳氢基团，其中至少有一个碳原子被杂原子取代，前提是在脂肪族二价碳氢基团的骨架内不得有两个相邻的杂原子，R1是芳基或杂环基，R2是(N,N-二取代)芳胺基团，R3是环氧基；以及b) 一个电荷生成化合物。环氧基可以与聚合物内的功能基团反应，直接或通过交联剂形成聚合物电荷传输化合物。
• METHOD FOR PRODUCING THIOESTER GROUP-CONTAINING ORGANOSILICON COMPOUND, THIOESTER GROUP-CONTAINING ORGANOSILICON COMPOUND, COMPOUNDING AGENT FOR RUBBER, RUBBER COMPOSITION, AND TIRE
  申请人：TSUCHIDA Kazuhiro

  公开号：US20120296023A1

  公开（公告）日：2012-11-22

  A new method for producing a thioester group-containing organosilicon compound by a convenient reaction with dramatically improved workability generating reduced byproduct is provided. The method comprises reacting an organosilicon compound having a hydrolyzable silyl group and mercapto group with a carboxylic anhydride. Also provided are an organosilicon compound having a hydrolyzable silyl group, a thioester group, and carboxyl group in the same molecule capable of remarkably reducing hysteresis loss of the cured rubber composition; a compounding agent for rubber containing such organosilicon compound; a rubber composition prepared by blending such compounding agent for rubber; and a tire produced by using the cured rubber composition are also provided.

  提供一种通过方便的反应生成减少副产物的硫酯基含有的有机硅化合物的新方法。该方法包括将具有可水解硅基和巯基的有机硅化合物与羧酸酐反应。还提供了一种具有同一分子中可水解硅基、硫酯基和羧基的有机硅化合物，能显著减少固化橡胶组合物的滞后损失；一种含有此类有机硅化合物的橡胶配方剂；通过混合此类橡胶配方剂制备的橡胶组合物；以及使用固化橡胶组合物生产的轮胎。
• Alkylamine derivates as anti-fouling agents
  申请人：Bayer Aktiengesellschaft

  公开号：EP1245558A1

  公开（公告）日：2002-10-02

  The invention relates to new and known compounds as well as methods for preventing the attachment of aquatic organisms to surfaces which are submerged for extensive periods of time in water. More particularly, this invention relates to the protection of submerged surfaces with new alkylamine derivatives as antifouling agents. The invention is beneficiary for the environment in that it will permit the use of copper- and tin-free paints.

  这项发明涉及新的和已知的化合物，以及防止水生生物附着在长时间浸泡在水中的表面上的方法。更具体地说，这项发明涉及使用新的烷胺衍生物作为防污剂来保护浸入表面。该发明对环境有益，因为它将允许使用不含铜和锡的涂料。