2-Methylthio-4-(2-thienyl)thiophene | 125150-83-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 双噻吩和低聚噻吩
• 英文名称: 2-Methylthio-4-(2-thienyl)thiophene
• 英文别名: 2-Methylsulfanyl-4-thiophen-2-ylthiophene
• CAS: 125150-83-6
• 化学式: C₉H₈S₃
• 分子量: 212.361
• InChiKey: UOSXVAULIMMZPM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  81.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3,3-bis(methylthio)-1-(thiophen-2-yl)prop-2-en-1-one 、 二碘甲烷 在 锌铜偶 作用下， 生成 2-Methylthio-4-(2-thienyl)thiophene
  参考文献：
  名称：

  尝试在α-氧杂环丁烯二硫缩醛上进行西蒙斯-史密斯反应：制备3,4-取代并退火的噻吩的新途径

  摘要：

  据报道，在Simmons-Smith反应条件下，在α-氧杂环丁烯二硫缩醛上进行intra基中间体的分子内环缩合，可以得到3,4-取代和噻吩基化的新方法。

  DOI：

  10.1016/s0040-4039(00)99411-5

文献信息

• Attempted Simmons-Smith reaction on α-oxoketene dithioacetals: A new general route to 3,4-substituted and annelated thiophenes
  作者：Laxminarayan Bhat、Abraham Thomas、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa

  DOI：10.1016/s0040-4020(01)88342-3

  日期：1992.11

  A new general synthesis of 3- and 3,4-substituted 4a–q, 3,4-annelated 7a–d and condensed tricyclic 9a–e thiophenes has been developed through Simmons-Smith reaction on the respective α-oxoketene dithioacetals. Extension of the reaction to α-cinnamoylketene dithioacetals 10a–e and its higher enyl analogs 13a–d, 15a–c gave the corresponding 3-styryl 11a–e and 3-di- and trienyl 14a–d, 16a–c thiophenes

  通过Simmons-Smith反应在相应的α-氧杂环丁烯二硫缩醛上开发了3和3,4-取代的4a-q，3,4-退火的7a-d和稠合的三环9a-e噻吩的新的一般合成物。将反应扩展至α-肉桂酰基烯酮二硫缩醛10a-e及其高级烯基类似物13a-d，15a-c，可得到相应的3-苯乙烯基11a-e和3-二-和三烯基14a-d，16a-c噻吩区域选择性方式。已经提出了一种可能的机制，该机制涉及通过二价硫上的类胡萝卜素亚甲基插入而形成的基分子的不寻常的分子内羟醛缩合。
• LIQUID CRYSTAL COMPOSITION
  申请人：Sumitomo Chemical Company, Limited

  公开号：US20170335191A1

  公开（公告）日：2017-11-23

  A liquid crystal composition which prevents production of an alignment defect of a liquid crystal compound and also has excellent storage stability during dissolution in a solvent is provided. The liquid crystal composition is suitable for constituting a retardation film capable of favorable circular polarization conversion. The liquid crystal composition includes a polymerizable liquid crystal compound having 3 or more ring structures in the main chain, and aluminum. A content of the aluminum is 1 ppm or more and 170 ppm or less relative to the polymerizable liquid crystal compound.

  提供了一种液晶组合物，可以防止液晶化合物的对准缺陷产生，并且在溶剂中溶解时具有优异的储存稳定性。该液晶组合物适用于构成具有良好圆偏振转换的减速膜。该液晶组合物包括具有3个或更多环结构的可聚合液晶化合物和铝。铝的含量相对于可聚合液晶化合物为1 ppm或更多，170 ppm或更少。
• Liquid crystal composition
  申请人：Sumitomo Chemical Company, Limited

  公开号：US10407619B2

  公开（公告）日：2019-09-10

  A liquid crystal composition which prevents production of an alignment defect of a liquid crystal compound and also has excellent storage stability during dissolution in a solvent is provided. The liquid crystal composition is suitable for constituting a retardation film capable of favorable circular polarization conversion. The liquid crystal composition includes a polymerizable liquid crystal compound having 3 or more ring structures in the main chain, and aluminum. A content of the aluminum is 1 ppm or more and 170 ppm or less relative to the polymerizable liquid crystal compound.

  本发明提供了一种液晶组合物，它能防止液晶化合物产生排列缺陷，而且在溶解于溶剂时具有极佳的储存稳定性。该液晶组合物适用于构成能够实现良好圆偏振转换的延缓膜。液晶组合物包括主链中具有 3 个或更多环状结构的可聚合液晶化合物和铝。相对于可聚合液晶化合物，铝的含量为 1 ppm 或以上，170 ppm 或以下。
• Liquid crystal composition, method of producing the same, and retardation film constituted from the same
  申请人：Sumitomo Chemical Company, Limited

  公开号：US11193065B2

  公开（公告）日：2021-12-07

  A liquid crystal composition is provided containing a polymerizable liquid crystal compound, the composition having high preservation stability when dissolved in a solvent and also having the ability to restrain the development of orientation defects of the liquid crystal compound. A method of producing such a liquid crystal composition is also provided with ease. The liquid crystal composition includes a first polymerizable liquid crystal compound having five or more ring structures on its principal chain and represented by the following formula (A) and a second polymerizable liquid crystal compound having five or more ring structures and represented by the following formula (B).

  提供了一种含有可聚合液晶化合物的液晶组合物，该组合物溶解在溶剂中时具有很高的保存稳定性，还能抑制液晶化合物取向缺陷的发展。此外，还提供了一种生产这种液晶组合物的简便方法。该液晶组合物包括主链上具有五个或五个以上环结构并由下式（A）表示的第一种可聚合液晶化合物和具有五个或五个以上环结构并由下式（B）表示的第二种可聚合液晶化合物。
• THOMAS, ABRAHAM;SINGH, GURDEEP;ILA, HIRIYAKKANAVAR;JINJAPPA, HIRIJAKKANAV+, TETRAHEDRON LETT., 30,(1989) N3, C. 3093-3096
  作者：THOMAS, ABRAHAM、SINGH, GURDEEP、ILA, HIRIYAKKANAVAR、JINJAPPA, HIRIJAKKANAV+

  DOI：——

  日期：——