甲基-苯-1,2,4,5-四羧酸 | 75543-83-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 甲基-苯-1,2,4,5-四羧酸
• 英文名称: 1-Tolyl-tetracarbonsaeure-(2.3.5.6), 1-Methyl-2.3.5.6-tetracarboxybenzol
• 英文别名: methyl-benzene-1,2,4,5-tetracarboxylic acid；3-Methyl-benzol-1,2,4,5-tetracarbonsaeure；Methyl-benzol-1,2,4,5-tetracarbonsaeure；3-Methylbenzene-1,2,4,5-tetracarboxylic acid
• CAS: 75543-83-8
• 化学式: C₁₁H₈O₈
• 分子量: 268.18
• InChiKey: UKVQTDPWSWISPM-UHFFFAOYSA-N

物化性质

• 熔点：
  123-125 °C
• 沸点：
  562.8±50.0 °C(Predicted)
• 密度：
  1.721±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.09
• 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：

  甲基-苯-1,2,4,5-四羧酸 在 盐酸 、 甲醇 作用下， 生成 methyl-benzene-1,2,4,5-tetracarboxylic acid-1-methyl ester
  参考文献：
  名称：

  Female Neurogenic Sexual Dysfunction Secondary to Clitoral Neuropathy

  摘要：

  We herein present several cases of female sexual dysfunction related in part to organic neurologic pathophysiology. These cases emphasize the role of the central and peripheral nervous systems in female sexual function.

  DOI：

  10.1080/713846813
• 作为产物：
  描述：

  麦角固醇 在 硝酸 作用下， 生成 甲基-苯-1,2,4,5-四羧酸
  参考文献：
  名称：

  Guiteras; Nakamiya; Inhoffen, Justus Liebigs Annalen der Chemie, 1932, vol. 494, p. 116,122

  摘要：

  DOI：

文献信息

• POLYIMIDE RESIN
  申请人：MITSUBISHI GAS CHEMICAL COMPANY, INC.

  公开号：US20160137789A1

  公开（公告）日：2016-05-19

  A polyimide resin contains repeating structural units represented by formulas (1) and (2), wherein the content of the repeating structural unit represented by formula (2) relative to the total of the repeating structural unit represented by formula (1) and the repeating structural unit represented by formula (2) falls within a specific range and the content of the divalent group represented by the following structural formula (B1) falls within a specific range: X 1 represents a tetravalent group containing an alicyclic hydrocarbon structure and having a carbon number of from 4 to 22. X 2 represents a tetravalent group containing an aromatic ring and having a carbon number of from 6 to 22. R 1 and R 2 each independently represent a divalent organic group, and the content of the divalent group represented by the following structural formula (B1) relative to the total of R 1 and R 2 is from 80 to 100 mol %:

  一种聚酰亚胺树脂包含由式（1）和（2）表示的重复结构单元，其中由式（2）表示的重复结构单元相对于由式（1）和（2）表示的重复结构单元的总量落在特定范围内，且由下列结构式（B1）表示的二价基团的含量落在特定范围内：X1代表含有脂环烃结构且碳数为4至22的四价基团。X2代表含有芳香环且碳数为6至22的四价基团。R1和R2各自独立地代表二价有机基团，且由下列结构式（B1）表示的二价基团相对于R1和R2的总量为80至100摩尔%。
• Self-extinguishing polycarbonate composition
  申请人：ENICHEM TECNORESINE S.p.A.

  公开号：EP0103922A1

  公开（公告）日：1984-03-28

  Self-extinguishing polycarbonates are disclosed, which consist of mixtures of polycarbonates with at least one salt of metals of the I and/or II A and B Groups of the Periodic Table, and/or ammonium salts of organic carboxylic compounds having the general formula (I) and, as an adjuvant, at least one compound which is a member selected from the group consisting of the following classes of compounds: i) a halogenated organic ether preferably selected from among those having the general formulae (II) and (III): ii) an imide corresponding to the general formulae (IV), (V), (VI), and (VII): iii) an organic sulfone or a derivative thereof; iv) an inorganic compound selected from the group consisting of halides of alkali metals or of alkaline earth metals, oxides of metals of the groups IB, VIB, VIIB, IIIA, IVA and VIII of the Periodic Table, of the lanthanide group, carbon black and the residues of the pyrolysis of the organic acid salts of formula (I).

  已公开的自熄灭聚碳酸酯包括聚碳酸酯与至少一种元素周期表 I 和/或 II A 和 B 族金属盐和/或通式为(I)的有机羧酸化合物铵盐的混合物 以及作为佐剂的至少一种化合物，该化合物选自以下几类化合物组成的组： i) 从通式（II）和（III）中优选的卤代有机醚： ii) 与通式(IV)、(V)、(VI)和(VII)相对应的亚胺： iii) 有机砜或其衍生物； iv) 无机化合物，选自由碱金属或碱土金属的卤化物、元素周期表中 IB、VIB、VIIB、IIIA、IVA 和 VIII 族金属的氧化物、镧系族金属的氧化物、炭黑和式 (I) 有机酸盐热分解的残余物组成的组。
• Co-vulcanizable compositions based on fluoroelastomers and polymeric compounds with a perfluoroetheric structure
  申请人：AUSIMONT S.p.A.

  公开号：EP0099079A1

  公开（公告）日：1984-01-25

  Fluoroelastomers based on vinylidene fluoride and containing small quantities of bromided or iodided olefine as a comonomer in function of vulcanization place, are admixed with perfluoropolyethers or polycondensation derivatives thereof, in quantities of 1 - 25% by weight on the elastomer: the thus obtained mixture being co-vulcanizable with organic peroxides. More particularly, there are used perfluoropolyethers obtained by polycondensation of e.g. a diamine with a polyoxaperfluoroalkandioc acid containing repetitive structural units -CF20- and -CF2CF20- , in a number not inferior to 5.

  以偏氟乙烯为基础、含有少量溴化或碘化烯烃作为共聚单体的含氟弹性体，在硫化过程中可掺入全氟聚醚或其缩聚衍生物，掺量为弹性体重量的 1 - 25%，由此得到的混合物可与有机过氧化物共同硫化。 更具体地说，可使用全氟聚醚，全氟聚醚是由二胺与含有重复结构单元 -CF20- 和 -CF2CF20- 的聚氧乙烯-氟烷二酸缩聚而成，其数量不低于 5。
• Low thermal expansion resin material for a wiring insulating film.
  申请人：HITACHI, LTD.

  公开号：EP0133533A2

  公开（公告）日：1985-02-27

  A resin material comprising a polyimide having as chemical structural unit at least one aromatic ring which can rotate around its molecular axis but has no flexibility at another direction, said polyimide being oriented at least at a uniaxial direction, has a low thermal expansion coefficient and can be shaped together with an inorganic material into one body to give a composite shaped article.

  一种由聚酰亚胺组成的树脂材料，其化学结构单元为至少一个芳香环，该芳香环可绕其分子轴旋转，但在另一个方向上没有柔韧性，所述聚酰亚胺至少在单轴方向上定向，具有较低的热膨胀系数，并可与无机材料塑合成一体，形成复合形状的物品。
• Process for producing metal-polyimide composite article
  申请人：HITACHI, LTD.

  公开号：EP0361461A2

  公开（公告）日：1990-04-04

  The present invention provides a process for producing a metal (2)-polyimide (3) composite material such as a wiring board. In production thereof, deterioration of polyamide film (3) due to oxidation during imidization of a polyimide precursor in contact with metal (2) such as copper or silver can be prevented. The present invention is characterized by using a polyimide precursor having an acidic functional group which is masked. Examples of the polyamide precursor are polyamic acid epoxy adducts, amido polyamic acids, silylated polyamic acids, etc.

  本发明提供了一种生产金属（2）-聚酰亚胺（3）复合材料（如线路板）的工艺。在生产过程中，可以防止聚酰亚胺前体在与铜或银等金属（2）接触的亚胺化过程中因氧化而导致聚酰胺薄膜（3）变质。本发明的特点是使用具有被掩蔽的酸性官能团的聚酰亚胺前体。聚酰胺前体的例子有聚酰胺酸环氧加合物、氨基聚酰胺酸、硅烷化聚酰胺酸等。