1,4-bis(methylthio)-1,3-butadiene | 35822-49-2

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: 1,4-bis(methylthio)-1,3-butadiene
• 英文别名: 1c,4c-bis-methylsulfanyl-buta-1,3-diene；1,3-Butadiene, 1,4-bis(methylthio)-, (Z,Z)-；(1Z,3Z)-1,4-bis(methylsulfanyl)buta-1,3-diene
• CAS: 35822-49-2
• 化学式: C₆H₁₀S₂
• 分子量: 146.277
• InChiKey: DEKIQJNFHBLPMQ-GLIMQPGKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  8
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  50.6
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2,7-dimethyl-1,8-dihydro-2,7-benzodithiecin-2,7-diium bis(tetrafluoroborate) 在 lithium diisopropyl amide 作用下， 以 四氢呋喃 为溶剂， 反应 4.0h， 以67.8%的产率得到1,4-bis(methylthio)-1,3-butadiene
  参考文献：
  名称：

  Synthesis and Properties of Novel Medium-sized Heterocyclic Compounds Containing Two Sulfur Atoms in the Ring and Synthetic Approaches to Conjugated Cyclic Disulfonium Ylides

  摘要：

  Tribenzo[b,f,h][1,4]dithiecin (8) was prepared by coupling 2,2'-bis(bromomethyl)biphenyl (10) with 1,2-benzenedithiol (11) in the presence of NaH in acetonitrile. Another novel dithiecin derivative, 1,8-dihydro-2,7-benzodithiecin (9) was synthesized by coupling of 1,4-dimercapto-2,3-O-isopropylidene-Lg-threitol (13a) with alpha,alpha'-dibromo-o-xylene (12), followed by hydrolysis and subsequent dehydration via the mesylate derivative (16). The benzodithiecin (9) was also prepared by treatment of dithiol (18) with butadiyne along with alpha,alpha'-bis(1-buten-3-ynylthio)-o-xylene (19) as a byproduct. Compound (19) was subjected to an intramolecular coupling reaction using CuCl-pyridine-O-2 in benzene to yield the 12-membered ring compound (23). We also describe our effort to prepare the corresponding cyclic diylide compounds from the above new dithiecins (8) and (9), and known dithiecin (7).

  DOI：

  10.3987/com-99-s(i)5

文献信息

• 1,2-Dithiines and precursors, XVI: Synthesis, structure, and reactivity of non-anellated 1,2-dithiines
  作者：Werner Schroth、Simona Dunger、Frank Billig、Roland Spitzner、Rainer Herzschuh、Almut Vogt、Thomas Jende、Gunter Israel、Jens Barche、Dieter Ströhl、Joachim Sieler

  DOI：10.1016/0040-4020(96)00752-1

  日期：1996.9

  Various monocyclic 1,2-dithiines 6a,b,d-t were prepared via (Z,Z)-1,4-difunctionalized butadienes (4–11,19,20). A twisted cyclic structure A is unequivocally proved rather than of the ringopened valence isomer B. The reactivity of these 1,2-dithiines is described. Thermal as well as day-light induced sulfur extrusion is an important feature of their chemistry. The latter mode of sulfur extrusion depends

  通过（Z，Z）-1,4-双官能化丁二烯（4-11,19,20）制备了各种单环1,2-二甲基6a，b，dt。甲扭曲环状结构甲明确地证明了，而不是ringopened价键异构体的乙。描述了这些1,2-二硫烷的反应性。热和日光诱导的硫挤出是其化学性质的重要特征。硫磺挤出的后一种模式在很大程度上取决于可见光区域的吸收。
• Synthesis and Properties of Novel Medium-sized Heterocyclic Compounds Containing Two Sulfur Atoms in the Ring and Synthetic Approaches to Conjugated Cyclic Disulfonium Ylides
  作者：Hiroshi Shimizu、Hiroyoshi Watanabe、Masahiro Mizuno、Tadashi Kataoka、Mikio Hori

  DOI：10.3987/com-99-s(i)5

  日期：——

  Tribenzo[b,f,h][1,4]dithiecin (8) was prepared by coupling 2,2'-bis(bromomethyl)biphenyl (10) with 1,2-benzenedithiol (11) in the presence of NaH in acetonitrile. Another novel dithiecin derivative, 1,8-dihydro-2,7-benzodithiecin (9) was synthesized by coupling of 1,4-dimercapto-2,3-O-isopropylidene-Lg-threitol (13a) with alpha,alpha'-dibromo-o-xylene (12), followed by hydrolysis and subsequent dehydration via the mesylate derivative (16). The benzodithiecin (9) was also prepared by treatment of dithiol (18) with butadiyne along with alpha,alpha'-bis(1-buten-3-ynylthio)-o-xylene (19) as a byproduct. Compound (19) was subjected to an intramolecular coupling reaction using CuCl-pyridine-O-2 in benzene to yield the 12-membered ring compound (23). We also describe our effort to prepare the corresponding cyclic diylide compounds from the above new dithiecins (8) and (9), and known dithiecin (7).