5,6-dihydro-2-thioxo-1,3-dithio[2,3-d][1,4]thiaselenin | 238419-85-7

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: 5,6-dihydro-2-thioxo-1,3-dithio[2,3-d][1,4]thiaselenin
• 英文别名: 5,6-Dihydro-[1,3]dithiolo[4,5-b][1,4]thiaselenine-2-thione
• CAS: 238419-85-7
• 化学式: C₅H₄S₄Se
• 分子量: 271.311
• InChiKey: WLQVVSZOMVWHGP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.39
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  108
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5,6-dihydro-2-thioxo-1,3-dithio[2,3-d][1,4]thiaselenin 在 mercury(II) diacetate 作用下， 以 氯仿 为溶剂， 反应 8.0h， 以95%的产率得到5,6-dihydro-2-oxo-1,3-dithio[2,3-d][1,4]thiaselenin
  参考文献：
  名称：

  Synthetic Procedure for Various Selenium-Containing Electron Donors of the Bis(Ethylenedithio)tetrathiafulvalene (BEDT-TTF) Type

  摘要：

  Six selenium variants of BEDT-TTF have been successfully synthesized by a newly developed synthetic method that involves a combination of two key reactions for the construction of two kinds of heterocyclic rings: the first is a one-pot formation of 1,3-dichalcogenole-2-chalcogenones from a common starting material, THP-protected 2-(ethynylthio)ethanol, leading to the inner five-membered rings, and the other is the annelation of the outer six-membered heterocyclic ring onto the inner ring by an intramolecular transalkylation reaction on a chalcogen atom. This method turned out to be widely applicable to the syntheses of the electron donors of bis(ethylenedithio)- and bis(ethyleneselenothio)-substituted types. However, synthetic attempts to form analogous donors of the bis(ethylenediseleno)-substituted type from THP-protected 2-(ethynylseleno)ethanol were unsuccessful. This is attributable to the predominance of side-reactions via a seleniranium (episelenonium) salt over the desired six-membered ring formation by transalkylation via a seleninium salt.

  DOI：

  10.1021/jo016393h
• 作为产物：
  描述：

  4-methylseleno-5-[2-(tetrahydropyran-2-yloxy)ethylthio]-1,3-dithiole-2-thione 在 吡啶 、 盐酸 、 sodium iodide 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 反应 80.0h， 生成 5,6-dihydro-2-thioxo-1,3-dithio[2,3-d][1,4]thiaselenin
  参考文献：
  名称：

  Synthetic Procedure for Various Selenium-Containing Electron Donors of the Bis(Ethylenedithio)tetrathiafulvalene (BEDT-TTF) Type

  摘要：

  Six selenium variants of BEDT-TTF have been successfully synthesized by a newly developed synthetic method that involves a combination of two key reactions for the construction of two kinds of heterocyclic rings: the first is a one-pot formation of 1,3-dichalcogenole-2-chalcogenones from a common starting material, THP-protected 2-(ethynylthio)ethanol, leading to the inner five-membered rings, and the other is the annelation of the outer six-membered heterocyclic ring onto the inner ring by an intramolecular transalkylation reaction on a chalcogen atom. This method turned out to be widely applicable to the syntheses of the electron donors of bis(ethylenedithio)- and bis(ethyleneselenothio)-substituted types. However, synthetic attempts to form analogous donors of the bis(ethylenediseleno)-substituted type from THP-protected 2-(ethynylseleno)ethanol were unsuccessful. This is attributable to the predominance of side-reactions via a seleniranium (episelenonium) salt over the desired six-membered ring formation by transalkylation via a seleninium salt.

  DOI：

  10.1021/jo016393h