Methyl 2,2-bis-(O-isopropyldithioxanthyl)acetate | 64407-81-4

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫代缩醛
• 英文名称: Methyl 2,2-bis-(O-isopropyldithioxanthyl)acetate
• 英文别名: methyl 2,2-bis-(O-isopropyldithiocarboxy)acetate；Methyl bis({[(propan-2-yl)oxy]carbonothioyl}sulfanyl)acetate；methyl 2,2-bis(propan-2-yloxycarbothioylsulfanyl)acetate
• CAS: 64407-81-4
• 化学式: C₁₁H₁₈O₄S₄
• 分子量: 342.526
• InChiKey: XEDQSKWELBUIIC-UHFFFAOYSA-N

物化性质

• 沸点：
  404.1±40.0 °C(Predicted)
• 密度：
  1.290±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  19
• 可旋转键数：
  10
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  160
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  Methyl 2,2-bis-(O-isopropyldithioxanthyl)acetate 在 硫酸 作用下， 以 正己烷 为溶剂， 反应 3.0h， 以47%的产率得到1,3,4,6-四硫并环戊烯-2,5-二酮
  参考文献：
  名称：

  [1,3]-二硫醇-[4,5-d][1,3-二硫醇]-2,5-二酮

  摘要：

  提出了从二硫化碳开始的[1,3]-二硫醇-[4,5 - d ][1,3-二硫醇]-2,5-二酮的安全三步反应序列。优化的反应条件、严格的纯化和对所有中间体的全面表征可重复提供具有 181 °C (分解) 熔点的优质最终产品。

  DOI：

  10.1055/s-0040-1720891
• 作为产物：
  描述：

  二氯乙酸甲酯 、 potassium isopropylxanthate 以 丙酮 为溶剂， 反应 8.0h， 以103.9 g的产率得到Methyl 2,2-bis-(O-isopropyldithioxanthyl)acetate
  参考文献：
  名称：

  [1,3]-二硫醇-[4,5-d][1,3-二硫醇]-2,5-二酮

  摘要：

  提出了从二硫化碳开始的[1,3]-二硫醇-[4,5 - d ][1,3-二硫醇]-2,5-二酮的安全三步反应序列。优化的反应条件、严格的纯化和对所有中间体的全面表征可重复提供具有 181 °C (分解) 熔点的优质最终产品。

  DOI：

  10.1055/s-0040-1720891

文献信息

• Polymeric material and methods of making using controlled radical initiators
  申请人：3M INNOVATIVE PROPERTIES COMPANY

  公开号：US10400055B2

  公开（公告）日：2019-09-03

  Controlled radical initiators, reaction mixtures containing the controlled radical initiators and various ethylenically unsaturated monomers, and polymeric materials formed from the reaction mixtures are provided. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds with a single carbon atom between the two dithiocarbamate or dithiocarbonate groups. Polymeric materials such as homopolymers, random copolymers, and block copolymers can be prepared using the controlled radical initiators.

  提供了受控自由基引发剂、含有受控自由基引发剂和各种乙烯不饱和单体的反应混合物，以及由反应混合物形成的聚合物材料。受控自由基引发剂是双二硫代氨基甲酸酯或双二硫代碳酸酯化合物，在两个二硫代氨基甲酸酯或二硫代碳酸酯基团之间有一个碳原子。使用受控自由基引发剂可以制备均聚物、无规共聚物和嵌段共聚物等聚合物材料。
• Crosslinkable and crosslinked polymeric materials
  申请人：3M INNOVATIVE PROPERTIES COMPANY

  公开号：US10640686B2

  公开（公告）日：2020-05-05

  Crosslinkable compositions are provided that contain a) a polymeric material having at least two terminal dithiocarbamate groups or two terminal dithiocarbonate groups and b) a monomer composition that includes at least a crosslinking monomer having two or more ethylenically unsaturated groups. The polymeric materials in the crosslinkable compositions undergo chain extension and crosslinking reactions when exposed to actinic radiation in the ultraviolet region of the electromagnetic spectrum. Additionally, crosslinked compositions, articles that contain the crosslinkable compositions or the crosslinked compositions, and methods of making the articles are provided.

  可交联组合物包含 a) 具有至少两个末端二硫代氨基甲酸酯基团或两个末端二硫代碳酸酯基团的聚合材料和 b) 单体组合物，该单体组合物至少包括具有两个或两个以上乙烯基不饱和基团的交联单体。可交联组合物中的聚合材料在暴露于电磁波谱紫外区的光辐射时会发生链延伸和交联反应。此外，还提供了交联组合物、含有可交联组合物或交联组合物的物品以及制造这些物品的方法。
• Silicone-based pressure-sensitive adhesive
  申请人：3M INNOVATIVE PROPERTIES COMPANY

  公开号：US10822532B2

  公开（公告）日：2020-11-03

  Silicone-based pressure-sensitive adhesives, reaction mixtures used to form the pressure-sensitive adhesives, methods of making the silicone-based pressure-sensitive adhesives, and articles containing the silicone-based pressure-sensitive adhesives are described. More particularly, the silicone-based pressure-sensitive adhesives include silicone-based elastomeric materials that are prepared by polymerizing a silicone compound having at least two ethylenically unsaturated groups in the presence of actinic radiation (e.g., ultraviolet radiation) and a controlled radical initiator. The controlled radical initiator is a bis-dithiocarbamate or bis-dithiocarbonate compound having a single carbon between the two dithiocarbamate or dithiocarbonate groups.

  描述了基于硅酮的压敏胶、用于形成压敏胶的反应混合物、制备基于硅酮的压敏胶的方法，以及包含基于硅酮的压敏胶的产品。具体而言，基于硅酮的压敏胶包括通过在光活化辐射（例如紫外线）和受控自由基引发剂的存在下聚合至少具有两个乙烯基不饱和基团的硅酮化合物而制备的弹性材料。受控自由基引发剂是具有两个硫代氨基甲酸酯或硫代碳酸酯基团之间单个碳原子的双硫代氨基甲酸酯或双硫代碳酸酯化合物。
• Photo-radical cure of silicones
  申请人：3M INNOVATIVE PROPERTIES COMPANY

  公开号：US10836934B2

  公开（公告）日：2020-11-17

  Silicone-based elastomeric materials, articles containing the silicone-based elastomeric materials, reaction mixtures used to form the silicone-based elastomeric materials, and methods of making the silicone-based elastomeric materials are described. The silicone-based elastomeric materials are prepared by polymerizing silicone compounds having at least two ethylenically unsaturated groups in the presence of actinic radiation and a controlled radical initiator. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds having a single carbon between the two dithiocarbamate or dithiocarbonate groups. The silicone-based elastomeric materials typically have improved mechanical properties compared to silicone-based elastomeric materials formed by free radical polymerization reactions in the presence of conventional photoinitiators.

  本文描述了硅基弹性材料、含有硅基弹性材料的物品、用于形成硅基弹性材料的反应混合物以及硅基弹性材料的制造方法。硅基弹性体材料的制备方法是：在光辐射和受控自由基引发剂存在的情况下，聚合具有至少两个乙烯基不饱和基团的硅化合物。受控自由基引发剂是双二硫代氨基甲酸酯或双二硫代碳酸酯化合物，在两个二硫代氨基甲酸酯或二硫代碳酸酯基团之间有一个碳。与在传统光引发剂存在下通过自由基聚合反应形成的硅基弹性材料相比，硅基弹性材料通常具有更好的机械性能。
• Polymeric compositions prepared with a controlled radical initiator
  申请人：3M INNOVATIVE PROPERTIES COMPANY

  公开号：US10913807B2

  公开（公告）日：2021-02-09

  Crosslinkable polymeric materials, crosslinked polymeric materials, articles containing the crosslinkable polymeric materials or crosslinked polymeric materials, and methods of making the articles and various compositions are provided. More particularly, the crosslinkable composition contains a) a first polymeric material, which has terminal dithiocarbamate or dithiocarbonate groups, b) a crosslinking composition containing a chlorinated triazine crosslinking agent and/or a crosslinking monomer having two or more ethylenically unsaturated groups, and c) a thixotropic agent containing metal oxide particles. The crosslinkable composition may be printable or dispensed. In some embodiments, the crosslinked composition is a pressure-sensitive adhesive.

  提供了可交联聚合材料、交联聚合材料、含有可交联聚合材料或交联聚合材料的物品，以及制造这些物品和各种组合物的方法。更具体地说，可交联组合物包含 a) 第一种聚合物材料，它具有末端二硫代氨基甲酸酯或二硫代碳酸酯基团；b) 一种交联组合物，它含有氯化三嗪交联剂和/或具有两个或两个以上乙烯基不饱和基团的交联单体；以及 c) 一种触变剂，它含有金属氧化物颗粒。可交联组合物可以印刷或分装。在某些实施例中，交联组合物是一种压敏胶。