4,4'-二巯基二苯甲酮 | 37089-83-1

• 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: 4,4'-二巯基二苯甲酮
• 英文名称: bis(4-mercaptophenyl)-methanone
• 英文别名: 4,4'-dimercapto benzophenone；4,4'-dimercaptobenzophenone；4,4'-dimercapto-benzophenone；4,4'-Dimercapto-benzophenon；bis-(4-mercaptophenyl) ketone；bis-(4-mercaptophenyl)-ketone；bis(4-sulfanylphenyl)methanone
• CAS: 37089-83-1
• 化学式: C₁₃H₁₀OS₂
• 分子量: 246.354
• InChiKey: GNXBUKHICJDQRQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  19.1
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4,4'-二巯基二苯甲酮 在 乙醚 、 双氧水 、 sodium ethanolate 、 溶剂黄146 、 苯 作用下， 生成 1,1-bis-(4-ethanesulfonyl-phenyl)-ethanol
  参考文献：
  名称：

  Tadros; Saad, Journal of the Chemical Society, 1954, p. 1155

  摘要：

  DOI：
• 作为产物：
  描述：

  4,4'-二氯二苯甲酮 在 乙醇 、 氯 作用下， 以 氯仿 、 1,2-二氯乙烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 生成 4,4'-二巯基二苯甲酮
  参考文献：
  名称：

  Mercapto Benzophenone Compounds, Compositions and Preparation Method Thereof

  摘要：

  本发明提供了一种使用巯基苯酮化合物作为关键原料制备的光固化组合物。本发明旨在解决先前光固化技术中存在的问题，即低分子光引发剂容易残留和迁移，而大分子光引发剂由于有效成分含量低而具有低起始效率，并且存在一定的迁移问题。本发明中的光固化组合物可以轻松制备，并且与乙烯基不饱和化合物具有高添加效率，通过添加得到的光固化组合物在用于光固化涂料、粘结剂和油墨配方时没有残留的巯基，具有高起始活性和零迁移率的特点。

  公开号：

  US20130150479A1

文献信息

• Comparative study on polyimides from isomeric 3,3′-, 3,4′-, and 4,4′-linked bis(thioether anhydride)s
  作者：Haibing Wei、Xueliang Pei、Xingzhong Fang

  DOI：10.1002/pola.24681

  日期：2011.6.1

  infrared, NMR, and elemental analysis. Three series of polyimides (PIs) were prepared from the obtained isomeric dianhydrides and aromatic diamines in N‐methyl‐2‐pyrrolidone (NMP) via the conventional two‐step method. The PIs showed excellent solubility in common organic solvents such as chloroform, N,N‐dimethylacetamide, and NMP. Their glass‐transition temperatures decreased according to the order of PIs

  三种异构的双（硫醚酐）单体，4,4'-双（2,3-二羧基苯硫基）二苯基酮二酐（3,3'-PTPKDA），4,4'-双（3,4-二羧基苯硫基）二苯基酮二酐通过多步反应制备了（4,4'-PTPKDA）和4-（2,3-二羧基苯硫基）-4'-（3,4-二羧基苯硫基）二苯基酮二酐（3,4'-PTPKDA）。它们的结构是通过傅立叶变换红外光谱，NMR和元素分析确定的。通过常规的两步法，从N-甲基-2-吡咯烷酮（NMP）中获得的异构体二酐和芳族二胺制备了三个系列的聚酰亚胺（PI）。PI在普通有机溶剂（如氯仿，N，N）中显示出极好的溶解性-二甲基乙酰胺和NMP。在3,3'-PTPKDA，3,4'-PTPKDA和4,4'-PTPKDA的基础上，它们的玻璃化转变温度根据PI的顺序降低。在504–519°C的温度下，所有PI在氮气中的失重温度均为5％（T 5％）。与4,4'-和3,4'-的相应异构体相比，基于3
• METHODS OF DESIGNING, PREPARING, AND USING NOVEL PROTONOPHORES
  申请人：Martineau Louis C.

  公开号：US20140135359A1

  公开（公告）日：2014-05-15

  The present invention provides a computer-assisted method of generating a protonophore requiring the use of a computer including a processor. The method includes: designing the protonophore, calculating, using the processor, an estimated protonophoric activity; producing the protonophore if the estimated protonophoric activity corresponds to an U 50 of about 20 μM or less; and determining the uncoupling activity of the protonophore. The present invention also provides novel protonophores that meet the above requirement and their methods of use.

  本发明提供了一种利用计算机辅助的方法来生成需要使用处理器的质子载体。该方法包括：设计质子载体，使用处理器计算估计的质子载体活性；如果估计的质子载体活性对应于大约20微米或更少的U50，则生产质子载体；并确定质子载体的解耦活性。本发明还提供了符合上述要求的新型质子载体及其使用方法。
• Enhanced hydrolytic stability of sulfonated polyimide ionomers using bis(naphthalic anhydrides) with low electron affinity
  作者：Haibing Wei、Guofei Chen、Lujie Cao、Qiuju Zhang、Qing Yan、Xingzhong Fang

  DOI：10.1039/c3ta11977g

  日期：——

  In the pursuit of hydrolytically stable sulfonated polyimide (SPI) membranes as promising candidates for proton exchange membranes, usable at elevated temperature, a series of novel SPI ionomers based on the low electron affinity bis(naphthalic anhydrides), 4,4′-sulfide-bis(naphthalic anhydride) (SBNA) and benzophenone-4,4′-bis(4-thio-1,8-naphthalic anhydride) (BPBTNA), were prepared. Tough, flexible, and transparent membranes were obtained from these polymers, although their inherent viscosities ranged from 0.41 to 0.59 dL g−1. The SPI membranes were thermally stable with the decomposition of sulfonic acid groups over 300 °C, and exhibited good mechanical properties with 65 MPa of tensile strength at 25 °C and 50% RH. The proton conductivities of the SPI membranes increases with increasing temperature and ion exchange capability (IEC), and the S–O(80) with 2.23 mequiv. g−1 of IEC showed a higher proton conductivity than Nafion® 212 at 100% RH. For the high IEC membranes, microscopic analyses revealed the hydrophilic clusters were well-dispersed and connected to each other. The accelerated water stability tests demonstrated that the SPI ionomers based on SBNA and BPBTNA maintained a high mechanical strength after being aged in water for 24 h at 140 °C, which was much more stable than the SPI membranes based on 1,4,5,8-naphthalene tetracarboxylic dianhydride (NTDA). The improved hydrolytic stability of polymers could be well correlated with the results of the electron affinity (Ea) of the dianhydride calculated by the theoretical calculation. This investigation illustrated that this strategy will benefit the further development of hydrolytically stable SPIs applied to high temperature PEFCs.

  为了寻求水解稳定的磺化聚酰亚胺（SPI）膜作为质子交换膜的候选材料，并在高温下使用、制备了一系列基于低电子亲和力双（萘酐）的新型 SPI 离聚物，即 4,4′-硫化双（萘酐）（SBNA）和二苯甲酮-4,4′-双（4-硫代-1,8-萘酐）（BPBTNA）。尽管这些聚合物的固有粘度在 0.41 至 0.59 dL g-1 之间，但它们还是获得了坚韧、柔韧和透明的膜。SPI 膜具有良好的热稳定性，磺酸基的分解温度超过 300 °C，并具有良好的机械性能，在 25 °C、50% 相对湿度条件下拉伸强度为 65 兆帕。SPI 膜的质子传导性随温度和离子交换能力（IEC）的增加而增加，在 100% 相对湿度条件下，IEC 为 2.23 mequiv. g-1 的 S-O(80)膜的质子传导性高于 Nafion® 212。对高 IEC 膜进行的显微分析表明，亲水团簇分散良好且相互连接。加速水稳定性测试表明，基于 SBNA 和 BPBTNA 的 SPI 离聚物在 140 °C 的水中老化 24 小时后仍能保持较高的机械强度，这比基于 1,4,5,8-萘四羧酸二酐（NTDA）的 SPI 膜要稳定得多。聚合物水解稳定性的提高与理论计算得出的二酐电子亲和力（Ea）结果密切相关。这项研究表明，这种策略将有利于进一步开发适用于高温 PEFC 的水解稳定性 SPI。
• Process for producing sulfone containing thiophenols
  申请人：Imperial Chemical Industries Limited

  公开号：US03949002A1

  公开（公告）日：1976-04-06

  A method for the preparation of aromatic thiols which comprises reacting a benzenoid compound having at least one halogen atom activated by an inert electron-attracting group with an alkali metal disulphide in stoichiometric proportion of from 1.0 to 2.0 moles per gram atom of activated halogen to be replaced.

  一种制备芳香硫醇的方法，包括将至少含有一个由惰性电子吸引基团激活的卤素原子的苯类化合物与一种碱金属二硫化物反应，其摩尔比为每克被替换的激活卤素原子为1.0至2.0摩尔。
• PHOTOCHEMICALLY STABLE, NON-LEACHING SUNSCREENS FROM EPOXIDE-BASED SILANE COUPLING AGENTS AND UV ABSORBING CHROMOPHORES
  申请人：ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

  公开号：US20180333347A1

  公开（公告）日：2018-11-22

  UV absorbing monomers having one or more alkoxysilyl functional groups are produced through epoxide reaction chemistry. Sol-gel or emulsion polymerization of said UV absorbing monomers by themselves, or with alkoxysilane comonomers, affords nanoparticle sunscreens with reduced chemical exposure and improved photostability. Minimized leaching and decreased levels of photo-degradation were achieved with covalent incorporation to ensure isolation of the sunscreen chromophores and any photo-products from the skin.

  含有一种或多种烷氧基硅烷官能团的UV吸收单体是通过环氧反应化学制备的。使用这些UV吸收单体进行溶胶-凝胶或乳液聚合，或与烷氧基硅烷共聚单体一起进行，可以制备出纳米颗粒防晒霜，从而减少化学暴露并提高光稳定性。通过共价结合实现防晒剂色团和任何光降解产物与皮肤的隔离，从而实现了最小化渗出和降低的光降解水平。