2,3,5,6-tetramethylbenzenesulfonic acid | 4681-78-1

• 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: 2,3,5,6-tetramethylbenzenesulfonic acid
• 英文别名: 2,3,5,6-tetramethylbenzene-1-sulfonic acid
• CAS: 4681-78-1
• 化学式: C₁₀H₁₄O₃S
• 分子量: 214.285
• InChiKey: KJJMOCUMRBSKTE-UHFFFAOYSA-N

物化性质

• 熔点：
  115-116 °C
• 密度：
  1.208±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  62.8
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,3,5,6-tetramethylbenzenesulfonic acid 在 氟磺酸 、 lead dioxide 作用下， 生成 2,3,5,6-tetramethylbenzenesulfonic acid radical-cation
  参考文献：
  名称：

  Rudenko, A. P., Russian Journal of Organic Chemistry, 1994, vol. 30, # 12, p. 1946 - 1980

  摘要：

  DOI：
• 作为产物：
  描述：

  1,2,4,5-四甲苯 在 硫酸 作用下， 生成 2,3,5,6-tetramethylbenzenesulfonic acid
  参考文献：
  名称：

  STUDIES ON THE POLYMETHYLBENZENES. VI. THE SEPARATION OF DURENE FROM ISODURENE¹

  摘要：

  DOI：

  10.1021/ja01343a057

文献信息

• Aromatic isomerizations and related reactions. Part 6 Reactions of the tetra- and pentamethylbenzenesulfonic acids and hexamethylbenzene in concentrated sulfuric acid; the mechanism of the Jacobsen reaction
  作者：Ankie Koeberg-Telder、Hans Cerfontain

  DOI：10.1002/recl.19871060304

  日期：——

  and the three tetramethylbenzenes (TeMB's) in concentrated aqueous sulfuric acid has been studied quantitatively using 1H and 13C NMR and UV spectroscopy. PMB-sulfonic acid yields (protonated) hexamethylbenzene (HMB) and the 2,3,4,5- and 2,3,4,6-TeMB-1-sulfonic acids in an initial ratio of 9/1/8 up to a substrate conversion of 36%; the ratio of HMB to the TeMB-1-sulfonic acids remains 1/1 and the only

  使用1 H和13 C NMR和UV光谱定量研究了五甲基苯（PMB）和三个四甲基苯（TeMB's）在浓硫酸水溶液中的化学行为。PMB磺酸以9/1/8的初始比例生成（质子化）六甲基苯（HMB）和2,3,4,5-和2,3,4,6-TeMB-1-磺酸底物转化率为36％；HMB与TeMB-1-磺酸的比率仍为1/1，唯一的后续反应是2,3,4,6-相对缓慢地转化为2,3,4,5-TeMB-1-磺酸是浓硫酸中唯一稳定的TeMB-1-磺酸异构体。
• SULFONIC ACID GROUP-CONTAINING DIAMINE COMPOUND AND METHOD FOR PRODUCING THE SAME
  申请人：Sugitani Tooru

  公开号：US20130178649A1

  公开（公告）日：2013-07-11

  The present invention provides a novel sulfonic acid group-containing diamine compound represented by formula (1) below, and a method for producing the same. This compound has a fluorene skeleton with sulfonic acid groups or derivatives thereof. In this compound, a substituent having an amino group is bonded to each of carbon atoms at the 2-position and the 7-position in the skeleton, and no substituent is bonded to a carbon atom at the 9-position in the skeleton. A in formula (1) denotes an optionally-substituted divalent aliphatic group (having a carbon number of 10 or less) or an optionally-substituted divalent aromatic group (having the number of rings of 4 or less), for example.

  本发明提供了一种新颖的含磺酸基二胺化合物，其化学式如下所示，并提供了制备该化合物的方法。该化合物具有含有磺酸基或其衍生物的芴骨架。在该化合物中，氨基取代物分别连接到骨架中的2位和7位的碳原子上，并且没有取代物连接到骨架中的9位的碳原子上。式（1）中的A表示一个可选择取代的二价脂肪基（碳原子数不超过10）或一个可选择取代的二价芳香基（环数不超过4），例如。
• COMPOSITION FOR FORMING ANTISTATIC FILM AND OLIGOMER COMPOUND
  申请人：NISSAN CHEMICAL INDUSTRIES, LTD.

  公开号：US20150008372A1

  公开（公告）日：2015-01-08

  A composition for forming an antistatic film, includes: an oligomer compound of Formula (1A): (where R 1 is a hydrogen atom or a group of Formula (2), each of R 2 and R 3 is independently a hydrogen atom, a group of Formula (3), or a group of Formula (4), at least one of the plurality of Rs is a sulfo group, a and b are positive integers satisfying 2≦(a+b)≦6; and each of a plurality of xs is independently an integer from 0 to 4): (where n is an integer satisfying 1≦n<(a+b+4); a, b, a plurality of Rs, and x are the same as those in Formula (1A); and each of a plurality of ys is independently an integer from 0 to 5); and water.

  一种用于形成抗静电膜的组合物，包括：式（1A）的寡聚物化合物： （其中R1是氢原子或式（2）的基团，每个R2和R3独立地是氢原子，式（3）的基团或式（4）的基团，多个Rs中至少一个是磺酸基团，a和b是正整数，满足2≦（a+b）≦6；每个xs都是独立的从0到4的整数）： （其中n是整数，满足1≦n <（a+b+4）; a，b，多个Rs和x与式（1A）中的相同; 每个ys都是独立的从0到5的整数）;和水。
• SULFONATING AGENT AND PROCESS
  申请人：KONISHI CHEMICAL IND. CO., LTD.

  公开号：EP0505582A1

  公开（公告）日：1992-09-30

  A sulfonating agent represented by general formula (I) and a process for sulfonating an aromatic compound therewith, wherein R¹ groups may be the same or different from each other and each represents C₁ to C₃ lower alkyl, n represents an integer of 3 to 5, and m represents an integer of 1 or 2, provided that n + m ≦ 6.

  由通式(I)代表的磺化剂以及用其磺化芳香族化合物的工艺，其中 R¹ 基团可以彼此相同或不同，且各自代表 C₁ 至 C₃ 低级烷基，n 代表 3 至 5 的整数，m 代表 1 或 2 的整数，条件是 n + m ≦ 6。
• POLYIMIDE, POLYIMIDE POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, AND SOLID POLYMER FUEL CELL
  申请人：Nitto Denko Corporation

  公开号：EP2692774A1

  公开（公告）日：2014-02-05

  The present invention provides a novel polyimide containing a diamine component that has a fluorene skeleton having a sulfonic acid group or a derivative thereof, and a novel polyimide-based polymer electrolyte membrane containing this polyimide as a main component and having properties based on this polyimide (for example, a good balance between the resistance to methanol crossover and the proton conductivity). The polyimide of the present invention contains a structural unit (P) represented by the following formula (1). The polymer electrolyte membrane of the present invention contains this polyimide as a main component.

  本发明提供了一种新型聚酰亚胺，该聚酰亚胺含有一种二胺成分，该二胺成分的芴骨架具有磺酸基团或其衍生物，本发明还提供了一种新型聚酰亚胺基聚合物电解质膜，该膜以这种聚酰亚胺为主要成分，并具有基于这种聚酰亚胺的特性（例如，在抗甲醇交叉和质子传导性之间取得良好平衡）。本发明的聚酰亚胺含有由下式（1）表示的结构单元（P）。本发明的聚合物电解质膜以这种聚酰亚胺为主要成分。