2,5-dimethyl-1,4-dithiane | 72033-37-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二噻烷
• 英文名称: 2,5-dimethyl-1,4-dithiane
• 英文别名: 2,5-dimethyl-dithiane；2,5-dimethyl-[1,4]dithiane；2,5-Dimethyl-[1,4]dithian；2,6-Dimethyl-dithian
• CAS: 72033-37-5
• 化学式: C₆H₁₂S₂
• 分子量: 148.293
• InChiKey: OGQAHQBLZPEVNY-UHFFFAOYSA-N

物化性质

• 沸点：
  108-114 °C(Press: 38 Torr)
• 密度：
  1.019±0.06 g/cm3(Predicted)
• 保留指数：
  1134;1157;1162;1137;1138;1145;1133

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  50.6
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,5-dimethyl-1,4-dithiane 在 双氧水 、 溶剂黄146 作用下， 生成 2,5-dimethyl-[1,4]dithiane-1,1,4,4-tetraoxide
  参考文献：
  名称：

  The Reaction between Sulfur Dioxide and Olefins. V.¹ The Structure of the Polysulfones from Olefins of the Type RCH=CH₂

  摘要：

  DOI：

  10.1021/ja01283a031
• 作为产物：
  描述：

  硫化丙烯 在 ammonium cerium(IV) nitrate 作用下， 以 四氯化碳 为溶剂， 反应 6.0h， 以27%的产率得到2,5-dimethyl-1,4-dithiane
  参考文献：
  名称：

  Efficient, mild, and regioselective conversion of thiiranes to alkoxy and acetoxy disulphides and dithianes with Ce(IV) based oxidants

  摘要：

  DOI：

  10.1016/0040-4020(91)80017-v

文献信息

• PROCESS FOR PRODUCING SUBSTITUTED METHYLAMINE COMPOUND AND TRIAZINE DERIVATIVE
  申请人：Shibata Yasushi

  公开号：US20100121054A1

  公开（公告）日：2010-05-13

  The present invention provides a process that enables a substituted methylamine compound which is useful as an intermediate for the production of agricultural chemicals and medicines, to be produced easily, with good yield, and at low cost, and also provides a production intermediate thereof. The process comprises a step of reacting a hexamethylenetetraammonium salt compound represented by a formula (I) with a base to obtain an N-methylidene-substituted methylamine oligomer represented by a formula (II) or a mixture of two or more of the oligomers, and a step of hydrolyzing the N-methylidene-substituted methylamine oligomer represented by formula (II) or the mixture of two or more of the oligomers in the presence of an acid. (wherein A represents an organic group that is either a hydrocarbon group or a heterocyclic group, or said organic group that has a substituent, R represents a hydrogen atom, an organic group that is either a hydrocarbon group or a heterocyclic group, or said organic group that has a substituent, L represents a halogen atom and the like, and n represents an integer of 2 to 20)

  本发明提供了一种过程，使得一种取代甲胺化合物易于制备，且产量高、成本低，可用作农药和药物的中间体，并提供其生产中间体。该过程包括以下步骤：将一种由式(I)表示的六亚甲基四胺盐化合物与碱反应，得到一种由式(II)表示的N-甲基亚甲基取代甲胺寡聚体或两种或两种以上的寡聚体混合物；在酸的存在下水解由式(II)表示的N-甲基亚甲基取代甲胺寡聚体或两种或两种以上的寡聚体混合物。(其中，A表示一个有机基团，可以是一个碳氢基团或杂环基团，或者是带有取代基的有机基团；R表示氢原子、一个碳氢基团或杂环基团，或者是带有取代基的有机基团；L表示卤素原子等；n表示2到20的整数。)
• ENERGETIC COCRYSTALS FOR TREATMENT OF A SUBTERRANEAN FORMATION
  申请人：HALLIBURTON ENERGY SERVICES, INC.

  公开号：US20160177698A1

  公开（公告）日：2016-06-23

  The present invention relates to energetic cocrystals, and to methods for using the same for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation, the method including obtaining or providing a composition including energetic cocrystals. Each energetic cocrystal independently includes an energetic compound and a secondary material. The method also includes placing the composition in a subterranean formation.

  本发明涉及具有能量共晶体的相关技术，以及使用这些技术治疗地下地层的方法。在各种实施例中，本发明提供了一种治疗地下地层的方法，该方法包括获得或提供包括能量共晶体的组合物。每个能量共晶体独立地包括一个能量化合物和一个辅助材料。该方法还包括将该组合物放置在地下地层中。
• Polymer for optical products and process for preparation thereof
  申请人：HOYA CORPORATION

  公开号：EP0530757A1

  公开（公告）日：1993-03-10

  A polymer used for optical products wherein the polymer comprises 2,5-dimethyl-1,4-dithiane skeletons represented by formula (1): and 1,3,5-trimethylcyclohexane skeletons represented by formula (2): and a part of or all of bonds between the 2,5-dimethyl-1,4-dithiane skeleton and the 1,3,5-trimethylcyclohexane skeleton are thiourethane bonds. The polymer exhibits 1.63 or more of refractive index, 35 or more of Abbe's number and 100°C or more of second-order transition point. The polymer is prepared by polyaddition of 2,5-dimercaptomethyl-1,4-dithiane and 1,3,5-triisocyanatomethylcyclohexane.

  一种用于光学产品的聚合物，其中该聚合物包含由式（1）表示的 2,5-二甲基-1,4-二噻烷骨架： 和式 (2) 所代表的 1,3,5-三甲基环己烷骨架： 且 2,5-二甲基-1,4-二噻烷骨架和 1,3,5-三甲基环己烷骨架之间的部分或全部键为硫代氨基甲酸乙酯键。这种聚合物的折射率为 1.63 或更高，阿贝数为 35 或更高，二阶转变点为 100°C 或更高。这种聚合物是由 2,5-二巯甲基-1,4-二噻烷和 1,3,5-三异氰酸基甲基环己烷通过加成反应制备而成。
• THIOURETHANE-BASED OPTICAL MATERIAL
  申请人：Mitsui Chemicals, Inc.

  公开号：EP1505094A1

  公开（公告）日：2005-02-09

  To provide a method for making a high-refractive-index resin having superior properties such as transparency, hue, heat resistance, impact resistance, and the like. A composition for making a high-refractive-index resin contains a polythiol compound and a compound containing at least two iso(thio)cyanato groups, the polythiol compound having a dithioacetal, dithioketal, orthotrithioformic ester, or orthotetrathiocarbonic ester skeleton. The molar ratio of the mercapto group to the iso(thio)cyanato group in the composition is greater than 1.0 but not more than 3.0. A method for making a resin by curing the composition, a resin prepared by curing the composition, an optical element made from the resin, and a lens made from the optical element are also provided.

  提供一种制造高折射率树脂的方法，该树脂具有优异的性能，如透明度、色调、耐热性、抗冲击性等。 一种用于制造高折射率树脂的组合物含有一种聚硫醇化合物和一种含有至少两个异（硫代）氰基的化合物，聚硫醇化合物具有二硫代乙缩醛、二硫代酮缩醛、正三硫甲酸酯或正四硫代碳酸酯骨架。组合物中巯基与异(硫)氰基的摩尔比大于 1.0，但不大于 3.0。此外，还提供了一种通过固化该组合物制造树脂的方法、一种通过固化该组合物制备的树脂、一种由该树脂制成的光学元件以及一种由该光学元件制成的透镜。
• Scale-inhibiting cocrystals for treatment of a subterranean formation
  申请人：Halliburton Energy Services, Inc.

  公开号：US10253244B2

  公开（公告）日：2019-04-09

  The present invention relates to cocrystals including a scale-inhibiting compound, and methods of using the cocrystals for treating a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation including obtaining or providing a composition including cocrystals. Each cocrystal independently includes a scale-inhibiting compound and a secondary material. The method also includes placing the composition in a subterranean formation.

  本发明涉及包括阻垢化合物的球晶，以及使用球晶处理地下地层的方法。在各种实施方案中，本发明提供了一种处理地下地层的方法，包括获得或提供一种包括椰晶体的组合物。每种球晶都独立地包括阻垢化合物和辅助材料。该方法还包括将组合物置于地下岩层中。