噻吩-2,3,4,5-四羧酸 | 4506-94-9

• 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: 噻吩-2,3,4,5-四羧酸
• 英文名称: thiophene-2,3,4,5-tetracarboxylic acid
• 英文别名: Thiophen-2,3,4,5-tetracarbonsaeure；thiophene-2.3.4.5-tetracarboxylic acid；Thiophen-tetracarbonsaeure；Thiophentetracarbonsaeure；Thiophenetetracarboxylic acid
• CAS: 4506-94-9
• 化学式: C₈H₄O₈S
• 分子量: 260.181
• InChiKey: LUEGQDUCMILDOJ-UHFFFAOYSA-N

物化性质

• 熔点：
  260-261 °C (decomp)
• 沸点：
  624.0±55.0 °C(Predicted)
• 密度：
  2.016±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  17
• 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：
  177
• 氢给体数：
  4
• 氢受体数：
  9

安全信息

• 海关编码：
  2934999090

上下游信息

• 上游原料

  中文名称	英文名称	CAS号	化学式	分子量
  ——	tetramethyl 2,3,4,5-thiophenetetracarboxylate	6579-15-3	C12H12O8S	316.288

反应信息

• 作为反应物：
  描述：

  噻吩-2,3,4,5-四羧酸 生成 3,4-噻吩二羧酸酐
  参考文献：
  名称：

  Hopff; v. d. Crone, Chimia, 1959, vol. 13, p. 107

  摘要：

  DOI：
• 作为产物：
  描述：

  tetramethyl 2,3,4,5-thiophenetetracarboxylate 生成 噻吩-2,3,4,5-四羧酸
  参考文献：
  名称：

  Michael, Chemische Berichte, 1895, vol. 28, p. 1632

  摘要：

  DOI：

文献信息

• Fluorine-Containing Polymerizable Monomer And Polymer Compound Using Same
  申请人：Central Glass Company, Limited

  公开号：US20140148548A1

  公开（公告）日：2014-05-29

  The present invention provides a fluorine-containing fluorenediamine of the formula (2): where R 1 represents one kind of substituent group selected from the group consisting of a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, a C 1 -C 4 alkyl group, a C 1 -C 4 fluoroalkyl group in which any number of hydrogen atoms can be substituted by a fluorine atom, a phenyl group, a methoxy group and a nitro group; R 2 represents one kind of substituent group selected from the group consisting of a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a phenyl group, a naphthyl group, a biphenyl group, a sulfonic acid group, a —C≡C—C(CH 3 ) 2 OH group, a —C≡C—C 6 H 5 group and a —C≡C—Si(CH 3 ) 3 group; HFIP represents a —C(CF 3 ) 2 OH group; and m and n each independently represent an integer of 0 to 2 and satisfy a condition of 1≦m+n≦4.

  本发明提供了一种具有如下公式（2）的含氟芴二胺：其中R1代表从氢原子、氟原子、氯原子、溴原子、C1-C4烷基、C1-C4氟烷基（其中任意数量的氢原子可被氟原子取代）、苯基、甲氧基和硝基等组成的一种取代基；R2代表从氢原子、氟原子、氯原子、溴原子、碘原子、苯基、萘基、联苯基、磺酸基、—C≡C—C(CH3)2OH基、—C≡C—C6H5基和—C≡C—Si(CH3)3基等组成的一种取代基；HFIP代表—C(CF3)2OH基；m和n分别独立地表示0到2的整数，并满足1≦m+n≦4的条件。
• DI-ISOIMIDE COMPOSITION
  申请人：ZAHR GEORGE ELIAS

  公开号：US20120330010A1

  公开（公告）日：2012-12-27

  The present invention deals with a novel aromatic di-isoimide chemical compound that has utility as a catalyst and as a curing agent in epoxy compositions. The di-isoimide serves effectively as a thermally activated latent catalyst in epoxy curing, thereby increasing shelf life, and avoids premature cross-linking. Novel laminated articles and printed wiring boards, including encapsulated printed wiring boards are also disclosed. The composition hereof also can be used as a flame retardant in thermoplastic and thermoset polymers.

  本发明涉及一种新型芳香二异咪酰亚胺化合物，该化合物可用作环氧组分中的催化剂和固化剂。该二异咪酰亚胺在环氧固化中有效地作为热激活的潜在催化剂，从而增加了货架寿命，并避免了过早的交联。此外，还公开了新型层压制品和印刷线路板，包括封装的印刷线路板。本发明的组成物还可用作热塑性和热固性聚合物的阻燃剂。
• Polyimides
  申请人：FUJIFILM ELECTRONIC MATERIALS U.S.A. INC.

  公开号：US11061327B2

  公开（公告）日：2021-07-13

  A polyimide polymer that includes the reaction product of: (a) at least one diamine selected from the group consisting of a diamine of Structure (Ia) and a diamine of Structure (Ib), (b) at least one diamine of Structure (II), (c) at least one tetracarboxylic acid dianhydride, and optionally (d) at least one compound containing a first functional group reactive with an amine or an anhydride and at least one second functional group selected from the group consisting of a substituted or unsubstituted alkenyl group and a substituted or unsubstituted alkynyl group. Each variable in the above formulas is defined in the specification.

  一种聚酰亚胺聚合物，包括以下反应产物：(a)至少一种从结构式(Ia)和结构式(Ib)组成的二胺中选择的二胺，(b)至少一种结构式(II)的二胺，(c)至少一种四羧酸二酐，以及可选地(d)至少一种含有第一官能团与胺或酸酐反应的化合物，以及至少一种从取代或未取代的烯烃基和取代或未取代的炔基中选择的第二官能团。上述公式中的每个变量在说明书中有定义。
• Fluorine-containing polymerizable monomer and polymer compound using same
  申请人：Saegusa Hiroshi

  公开号：US20090023886A1

  公开（公告）日：2009-01-22

  Disclosed is a fluorine-containing polymerizable monomer represented by the formula [1] below. (In the formula [1], a represents an integer of 1-4.) By having a plurality of polymerizable amines in a molecule while containing a hexafluoroisopropyl group, this fluorine-containing polymerizable monomer exhibiting water repellancy, oil repellency, low water absorbency, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index, low dielectric properties, and the like, and thus can be applied to the field of advanced polymer materials.

  公开了一种含氟可聚合单体，其化学式如下所示：[1]（在化学式[1]中，a代表1-4的整数）。该含氟可聚合单体分子中含有多个可聚合胺基，并含有六氟异丙基基团，因此具有耐水性、耐油性、低吸水性、耐热性、耐候性、耐腐蚀性、透明度、光敏性、低折射率、低介电性等特性，可应用于高级聚合物材料领域。
• OPTICAL FILM, IMAGE DISPLAY DEVICE, DIETHYNYLFLUORENE, AND POLYMER THEREOF
  申请人：Iida Toshiyuki

  公开号：US20100003490A1

  公开（公告）日：2010-01-07

  An optical film of the present invention comprises a polyimide-based polymer represented by the following general formula (V). The optical film of the present invention exhibits an optical property such that wavelength dispersion of retardation scarcely changes ranging from the short wavelength side to the long wavelength side. Typically, the optical film of the present invention may be used as a retardation film of a liquid crystal display device.

  本发明的光学薄膜包括由下列一般式（V）所代表的基于聚酰亚胺的聚合物。本发明的光学薄膜表现出一种光学特性，即从短波长侧到长波长侧，延迟色散的波长变化很少改变。通常，本发明的光学薄膜可用作液晶显示装置的延迟膜。