2,5-dimethyl-benzene-1,4-disulfonic acid | 52673-36-6

• 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: 2,5-dimethyl-benzene-1,4-disulfonic acid
• 英文别名: 2,5-Dimethyl-benzol-1,4-disulfonsaeure；2,5-Dimethylbenzene-1,4-disulfonic acid
• CAS: 52673-36-6
• 化学式: C₈H₁₀O₆S₂
• 分子量: 266.296
• InChiKey: NHKAXBDTOKCQPK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  126
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 sodium disulfide 作用下， 生成 2,5-dimethyl-benzene-1,4-disulfonic acid
  参考文献：
  名称：

  Holleman; Choufoer, Recueil des Travaux Chimiques des Pays-Bas, 1929, vol. 48, p. 1079

  摘要：

  DOI：

文献信息

• Aromatic Sulfonation, 131. Formation of Sulfonic Acids and Sulfonic Anhydrides in the Sulfur Trioxide Sulfonation of Some Dialkylbenzenes and 1,ω-Diarylalkanes
  作者：Hans Cerfontain、Ankie Koeberg-Telder、Helen C. A. van Lindert、Bert H. Bakker

  DOI：10.1002/jlac.199719971109

  日期：1997.11

  An exploratory study has been made on the SO3 sulfonation of a number of alkylarenes in [D2]dichloromethane as an aprotic solvent, mostly in the presence of [D8]1,4-dioxane as a reactivity moderator, in order to obtain information on sulfonic acid and sulfonic anhydride formation. 1,2-Dimethylbenzene (1) with 1.0 mol-equiv. of SO3 yields predominantly the 4-sulfonic acid (1-4-S), whereas with 4.0 mol-equiv

  为了获得质子惰性的[D 8 ]，4-二恶烷，在[D 2 ]二氯甲烷中作为非质子传递溶剂，对许多烷基芳烃进行SO 3磺化的探索性研究，有关磺酸和磺酸酐形成的信息。具有1.0摩尔当量的1,2-二甲基苯（1）。SO 3的产率主要为4-磺酸（1 -4-S），而当量为4.0 mol-当量。的SO 3，的相应的（分子间）磺酸酐（18％（摩尔）1 -4-SO 2）2 O的额外形成。1,4-二甲苯（2），当量为0.8摩尔当量。SO 3的产率主要为2 -2-S，而当量为4.0 mol-当量。通过SO 3形成磺酸酐（2 -2-SO 2）2 O及其6-S和6,6'-S 2衍生物，最终的主要产物为（6-S- 2 -2-SO 2）2 O. 1-乙基-4-甲基苯（3）与2.0 mol当量的反应。的SO 3- [D 8在-78 -40°C下，]二恶烷导致2-和3-S衍生物以26:74的摩尔比主要形成，并带有少量的三种相应的分子间酸酐。在0
• POLYMER, POLYMER ELECTROLYTE AND USE OF SAME
  申请人：Yashiro Arihiro

  公开号：US20110151355A1

  公开（公告）日：2011-06-23

  The present invention provides a polymer, a polymer electrolyte and the use thereof. The polymer has, as a structural unit, a phenylene group in which two or three hydrogen atoms each have been substituted with a group represented by the following formula (A), and is insoluble in water: wherein A 1 represents a group represented by formula (1a), formula (1b) or formula (1c) below, and the two or three A 1 groups may be the same as or different from each other, wherein R 10 and R 11 each independently represents a hydrogen atom, an alkyl group of 1 to 20 carbon atoms, or an aryl group of 6 to 20 carbon atoms, R 12 represents a hydrogen atom, an alkyl group of 1 to 20 carbon atoms, or an aryl group of 6 to 20 carbon atoms, M represents a metal ion or an ammonium ion, and in a case where M represents a divalent or higher-valent metal ion, M may be further bonded to another substituent.

  本发明提供了一种聚合物、聚合物电解质及其使用方法。该聚合物具有苯基结构单元，其中每个苯环上的两个或三个氢原子分别被下式（A）所代表的基团所取代，且聚合物不溶于水：其中A1代表以下式（1a）、式（1b）或式（1c）所代表的基团，两个或三个A1基团可以相同或不同，其中R10和R11各自独立地代表氢原子、1至20个碳原子的烷基或6至20个碳原子的芳基，R12代表氢原子、1至20个碳原子的烷基或6至20个碳原子的芳基，M代表金属离子或铵离子，当M代表二价或更高价的金属离子时，M可以进一步与另一个取代基连接。
• AROMATIC COPOLYMER HAVING PROTON CONDUCTIVE GROUP AND USES THEREOF
  申请人：Murakami Takuya

  公开号：US20140154610A1

  公开（公告）日：2014-06-05

  An aromatic copolymer comprises a hydrophilic segment (A) and a hydrophobic segment (B), wherein the hydrophilic segment (A) comprises a structural unit (1) having a proton conductive group, and the hydrophobic segment (B) comprises at least one structural unit selected from the group consisting of a structural unit (2) and a structural unit (3), wherein the structural unit (2) is a divalent structural unit having an aromatic ring and no proton conductive groups and having two bonding sites at the para-position of one ring included in the aromatic ring, and the structural unit (3) is a divalent structural unit having a benzene ring and is a structural unit different from the structural unit (2), the hydrophobic segment (B) in its entirety contained in the aromatic copolymer including both the structural unit (2) and the structural unit (3).

  一种芳香族共聚物包括亲水性片段（A）和疏水性片段（B），其中亲水性片段（A）包括具有质子导电基团的结构单元（1），而疏水性片段（B）包括至少一种从结构单元（2）和结构单元（3）组成的结构单元中选出的结构单元，其中结构单元（2）是具有芳香环但没有质子导电基团的二价结构单元，在芳香环中的一个环的对位上具有两个键合位点，而结构单元（3）是具有苯环的二价结构单元，是不同于结构单元（2）的结构单元，疏水性片段（B）完全包含在包括结构单元（2）和结构单元（3）的芳香族共聚物中。
• Ink and ink set for inkjet recording
  申请人：Fujifilm Corporation

  公开号：EP2455431A1

  公开（公告）日：2012-05-23

  To provide inks and ink sets for inkjet recording, which have good fastness and good jet-out stability and which give good images with no bleeding trouble, a magenta ink for inkjet printing contains a first dye; and a second dye having a different structure from the first dye, the first dye and the second dye each independently having an oxidation potential higher than 1.0 V versus SCE, wherein the first dye is an azo dye comprising an azo group, each end of the azo group having a hetero ring.

  为了提供用于喷墨记录的墨水和墨水套件，它们具有良好的牢度和良好的喷射稳定性，并且能够提供无渗色问题的良好图像，一种用于喷墨打印的品红色墨水包含第一染料；以及具有与第一染料不同结构的第二染料，第一染料和第二染料各自独立地具有相对于 SCE 高于 1.0 V 的氧化电位，其中第一染料是包含偶氮基团的偶氮染料，偶氮基团的每个末端都具有杂环。
• INK COMPOSITION, INKJET PRINTING INK, AND INKJET PRINTING METHOD
  申请人：FUJIFILM Corporation

  公开号：EP2687565A1

  公开（公告）日：2014-01-22

  Provided are an ink composition having a fastness at a high level and having an excellent grey balance in a range from a high-concentration region to a low-concentration region, an ink for inkjet recording using the ink composition, and an inkjet recording method using the ink for inkjet recording using the ink for inkjet recording. An ink composition containing at least two kinds of water-soluble long-wavelength dyes whose absorption spectrum in an aqueous solvent has a maximum wavelength of 550 nm to 700 nm, in which at least one kind of the water-soluble long-wavelength dyes is a first water-soluble long-wavelength dye of an azo compound represented by the following Formula (1), at least one kind of the water-soluble long-wavelength dyes is a second water-soluble long-wavelength dye that is different from the first water-soluble long-wavelength dye, and the second water-soluble long-wavelength dye is a compound having two to four azo groups conjugated with each other per molecule, an ink for inkjet recording using the ink composition, and an inkjet recording method using the ink for inkjet recording using the ink for inkjet recording. Formula (1): (In Formula (1), A represents a substituted or unsubstituted aryl group or a substituted or unsubstituted nitrogen-containing 5-membered heterocyclic group. G represents a nitrogen atom or -C(R2)=. R2 represents a hydrogen atom, a sulfo group, a carboxyl group, a substituted or unsubstituted carbamoyl group or a cyano group. Y2, Y3 and Y4 each independently represent a hydrogen atom or a monovalent substituent. Y2, Y3 and Y4 may be bound with each other to form a ring. All of Y2, Y3 and Y4 do not represent a hydrogen atom at the same time. M's each independently represent a hydrogen atom or a monovalent countercation.)

  本发明提供了一种在高浓度区域到低浓度区域范围内具有高牢度和优异灰平衡的墨水组合物，一种使用该墨水组合物的喷墨记录墨水，以及一种使用该墨水的喷墨记录方法。 一种墨水组合物，含有至少两种在水性溶剂中吸收光谱最大波长为 550 纳米至 700 纳米的水溶性长波长染料，其中至少一种水溶性长波长染料是由下式（1）表示的偶氮化合物的第一种水溶性长波长染料、至少一种水溶性长波长染料是不同于第一种水溶性长波长染料的第二种水溶性长波长染料，且第二种水溶性长波长染料是每个分子中具有 2 至 4 个相互共轭的偶氮基团的化合物，一种使用该墨水组合物的喷墨记录用墨水，以及一种使用该墨水组合物的喷墨记录用墨水的喷墨记录方法。 式（1）： 式（1）中，A 代表取代或未取代的芳基或取代或未取代的含氮 5 元杂环基团。R2 代表氢原子、磺基、羧基、取代或未取代的氨基甲酰基或氰基。Y2、Y3 和 Y4 各自独立地代表一个氢原子或一个一价取代基。Y2、Y3 和 Y4 可相互结合形成一个环。所有 Y2、Y3 和 Y4 不能同时代表一个氢原子。M 各独立地代表一个氢原子或一个一价取代基）。