二甲基五硫化物 | 7330-31-6

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫基化合物
• 中文名称: 二甲基五硫化物
• 英文名称: dimethyl pentasulfide
• 英文别名: Dimethyl-pentasulfid；(methylpentasulfanyl)methane
• CAS: 7330-31-6
• 化学式: C₂H₆S₅
• 分子量: 190.4
• InChiKey: HFHOSCCMQJJVKR-UHFFFAOYSA-N

物化性质

• 沸点：
  297.8±23.0 °C(Predicted)
• 密度：
  1.448±0.06 g/cm3(Predicted)
• 保留指数：
  1426;1428;1421;1396;1428

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  7
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  127
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  二甲基五硫化物 生成 二甲基二硫
  参考文献：
  名称：

  Riding; Thomas, Journal of the Chemical Society, 1923, vol. 123, p. 3275

  摘要：

  DOI：
• 作为产物：
  描述：

  Dimethyl-hexasulfid 80.0~85.0 ℃ 、1.33 Pa 条件下， 生成 二甲基五硫化物
  参考文献：
  名称：

  Boehme; Zinner, Justus Liebigs Annalen der Chemie, 1954, vol. 585, p. 142,146

  摘要：

  DOI：

文献信息

• Three sulfur atom insertion into the SS bond—pentasulfide preparation
  作者：Yihua Hou、Imad A Abu-Yousef、David N Harpp

  DOI：10.1016/s0040-4039(00)01357-5

  日期：2000.10

  Chloro(triphenylmethyl)trisulfide (1) reacts under mild conditions with symmetric primary dialkyl disulfides and aromatic disulfides giving pentasulfides as the main products in good yield and selectivity. A mechanism involving a triphenylmethyl alkyl/phenyl tetrasulfide intermediate is discussed.

  氯（三苯基甲基）三硫化物（1）在温和的条件下与对称的伯二烷基二硫化物和芳族二硫化物反应，以高收率和选择性得到五硫化物作为主要产物。讨论了涉及三苯基甲基烷基/苯基四硫化物中间体的机理。
• REACTIONS OF HYDROGEN SULFIDE WITH VARIOUS ORGANIC COMPOUNDS AT HIGH PRESSURES¹
  作者：T. L. CAIRNS、A. W. LARCHAR、B. C. McKUSICK

  DOI：10.1021/jo01134a023

  日期：1953.6
• Insertion of a two sulfur unit into the S–S bond—tailor-made polysulfides
  作者：Andrzej Z. Rys、David N. Harpp

  DOI：10.1016/s0040-4039(00)01249-1

  日期：2000.9

  Triphenylthiosulfenyl chloride (1) reacts with disulfides RSSR, yielding tetrasulfides as the main products. The results of the insertion for different R groups are reported. A two-step mechanism involving the formation of unsymmetrical trisulfide intermediates containing the trityl group is proposed. (C) 2000 Elsevier Science Ltd. All rights reserved.
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: K: MVol.3, 4.3, page 691 - 697
  作者：

  DOI：——

  日期：——
• Nucleophilic Substitution of Alkyl Halides by Electrogenerated Polysulfide Ions in N,N-dimethylacetamide.
  作者：Abdelkader Ahrika、Julie Robert、Meriem Anouti、Jacky Paris、Zong-Hui Jiang、Shi-Ping Yan、Geng-Lin Wang、Xin-Kan Yao、Hong-Gen Wang、J. -P. Tuchagues、Mattias Ögren

  DOI：10.3891/acta.chem.scand.53-0513

  日期：——

  The reactions between a series of alkyl halides RX: X = I, R = CH3 (1), C3H7 (2); X = Br, R = C4H9 (3), 2-C4H9 (4), 3-C5H11 (5), PhCH2 (6); X = Cl, R = PhCH2 (7), C6H13 (8), and electrogenerated S1/3- ions (S-6(2-) reversible arrow S-3(.-)) have been investigated by spectroelectrochemistry in N,N-dimethylacetamide at 20 degrees C. RX substrates react in two steps: (i) nucleophilic substitution of S1/3- ions (S(N)2 process) yielding RSx- ions ((x) over bar = 5.2, R = alkyl; (x) over bar = 4.8, R = PhCH2); (ii) subse quent substitutions of RS; ions lead to RS,R polysulfanes ((z) over bar approximate to 3.5), probably through partial disproportionation of the anionic species. On a preparative scale, mixtures of CH3SzCH3 (z = 2-6, (z) over bar = 3.9) or PhCH2SzCH2Ph (z = 2-5, (z) over bar = 3.7) were obtained from chemical reactions between 1, 6 and S-6(2-) ions, or electrochemical syntheses. Kinetic studies at 20 degrees C of the reactions between S-3(.-) ions and substrates 4, 5, 7 and 8 imply that the dianions S-6(2-) are the nucleophilic agents in the first step rather than S-3(.-) radical anions.

表征谱图