1,2-二甲基二苯并噻吩 | 31317-14-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻吩类
• 中文名称: 1,2-二甲基二苯并噻吩
• 英文名称: 1,2-dimethyldibenzothiophene
• 英文别名: dimethyldibenzothiophene
• CAS: 31317-14-3
• 化学式: C₁₄H₁₂S
• mdl: MFCD00216259
• 分子量: 212.315
• InChiKey: AXDZBUZLJGBONR-UHFFFAOYSA-N

物化性质

• 沸点：
  369.4±11.0 °C(Predicted)
• 密度：
  1.181±0.06 g/cm3(Predicted)
• 保留指数：
  2021.8;1985.6

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.142
• 拓扑面积：
  28.2
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 海关编码：
  2934999090

反应信息

• 作为产物：
  描述：

  3,4-二甲基苯硫酚 在 sodium hydroxide 、 selenium 、 PPA 作用下， 以 乙醇 为溶剂， 反应 13.5h， 生成 1,2-二甲基二苯并噻吩
  参考文献：
  名称：

  Tedjamulia, Marvin L.; Tominaga, Yoshinori; Castle, Raymond N., Journal of Heterocyclic Chemistry, 1983, vol. 20, p. 1485 - 1495

  摘要：

  DOI：

文献信息

• Ionic liquids and their use in extraction processes
  申请人：BP p.l.c.

  公开号：EP1854786A1

  公开（公告）日：2007-11-14

  There is provided a process for the extraction of at least one aromatic compound from a mixture with at least one aliphatic hydrocarbon, which process comprises contacting said mixture with a salt that is in a liquid state at a temperature below 150°C, said salt having a cation which comprises an aromatic nitrogen-containing heterocyclic ring system, in which a nitrogen atom forming part of said ring system is quaternised and in which said ring system is substituted by at least one electron-withdrawing substituent. Some of said salts are novel.

  提供了一种从至少一种脂肪烃混合物中提取至少一种芳香化合物的方法，该方法包括将所述混合物与一种在低于150°C的温度下处于液态的盐接触，所述盐具有含芳香氮杂环环系统的阳离子，其中构成所述环系统的一个氮原子被季铵化，并且所述环系统被至少一个电子吸引取代基取代。其中一些所述盐是新颖的。
• A novel acylative ring cleavage of benzothieno[3,2-b]pyran-4-ols: application to the synthesis of dibenzothiophenes and fused-ring derivatives
  作者：Christopher D. Gabbutt、John D. Hepworth、B. Mark Heron、Jean-Luc Thomas

  DOI：10.1039/a900730j

  日期：——

  The benzothienopyranols 3, readily available from the ketone 1, are transformed to the carbamates 5 on treatment with N,N-dimethylcarbamoyl chloride, subsequent thermal electrocyclisation provides access to dibenzothiophene derivatives 6 and 11–13.

  苯并噻吩吡喃醇 3 通过酮 1 方便获得，处理后与 N,N-二甲基氨基甲酰氯反应生成氨基甲酸酯 5，随后热电环化可获得二苯并噻吩衍生物 6 和 11–13。
• Desulfurization and Decolourizing of light oil by extraction
  申请人：GENERAL SEKIYU KABUSHIKI KAISHA

  公开号：EP0538738A2

  公开（公告）日：1993-04-28

  This process for the desulfurization and denitration of light oil is effected by extraction with an organic solvent containing nitrogen. The invention also relates to light oil desulfurized and denitrated by said process as well as an organic solvent containing nitrogen for the extraction. The solvent is selected from among, for example, hetrocyclic compounds containing nitrogen, such as pyrrolidones, imidazolidinones, pyrimidinones and pyridinium salts, and acid amides. The combination of the process of this invention with any ordinary process for hydrodesulfurization enables the production of light oil having a sulfur content not exceeding 0.01% by weight. Light oil still containing benzothiophenone and dibenzothiophenone derivatives after hydrodesulfurization can be easily desulfurized to yield a desulfurized product not having any undesirable color, or any offensive smell. Also, the extraction of nitrogen compounds and aromatic compound from light oil is effected by the same process. As the re-extraction of sulfur compounds from the extracted phase or the separation of the extracted phase into the solvent and the extracted oil can be easily carried out, the solvent is reusable. The light oil treated according to the process of this invention enables a reduction of particulates in the combustion product thereof, and has a high cetane index.

  这种轻油脱硫脱硝工艺是通过使用含氮有机溶剂进行萃取来实现的。本发明还涉及通过上述工艺脱硫和脱硝的轻油，以及用于萃取的含氮有机溶剂。例如，溶剂可选自含氮杂环化合物，如吡咯烷酮、咪唑烷酮、嘧啶酮、嘧啶鎓盐和酸酰胺。将本发明的工艺与任何普通的加氢脱硫工艺相结合，可以生产出硫含量不超过 0.01% （按重量计）的轻质油。加氢脱硫后仍含有苯并噻吩酮和二苯并噻吩酮衍生物的轻油可以很容易地进行脱硫处理，生产出的脱硫产品没有任何不良的颜色，也没有任何刺激性气味。此外，从轻油中提取氮化合物和芳香族化合物也可以采用相同的工艺。由于从萃取相中重新萃取硫化合物或将萃取相分离为溶剂和萃取油的过程很容易进行，因此溶剂可以重复使用。根据本发明工艺处理的轻油可减少燃烧产物中的微粒，并具有较高的十六烷值。
• Desulfurization and denitration of light oil by extraction
  申请人：GENERAL SEKIYU KABUSHIKI KAISHA

  公开号：EP0653477A2

  公开（公告）日：1995-05-17

  The use is provided of an organic solvent comprising either a heterocyclic compound containing nitrogen or an acid amide compound for denitrogenating a light oil by extraction. The heterocylic compound may be a ketone or a pyridinium salt. Such a heterocyclic ketone may be a pyrrolidone compound, an imidazolidinone or a pyrimidinone. Any of such ketones may be substituted by an alkyl group. The acid amide which may form the organic solvent can be dimethylformamide, dimethylacetamide or N,N-dimethylbenzamide.

  提供了一种包含含氮杂环化合物或酸酰胺化合物的有机溶剂，用于通过萃取使轻油脱氮。杂环化合物可以是酮或吡啶鎓盐。这种杂环酮可以是吡咯烷酮化合物、咪唑烷酮或嘧啶酮。任何此类酮都可以被烷基取代。构成有机溶剂的酸酰胺可以是二甲基甲酰胺、二甲基乙酰胺或 N,N-二甲基苯甲酰胺。
• Hydrotreating catalyst and process for hydrotreating hydrocarbon oils using the same
  申请人：Tonen Corporation

  公开号：EP1090682A1

  公开（公告）日：2001-04-11

  A high-activity hydrotreating catalyst containing a uniformly dispersed active component at a high concentration, and particularly useful for deep desulfurization of a hydrocarbon oil for its high hydrodesulfurization activity. The present invention also provides a hydrotreating process using the same catalyst.

  本发明是一种高活性加氢处理催化剂，含有高浓度均匀分散的活性组分，因其具有较高的加氢脱硫活性而特别适用于烃油的深度脱硫。本发明还提供了一种使用相同催化剂的加氢处理工艺。