2,4,5,6-tetramethyl-1,3-dioxane | 20615-14-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二恶烷
• 英文名称: 2,4,5,6-tetramethyl-1,3-dioxane
• 英文别名: 2,4,5,6-tetramethyl-[1,3]dioxane；2,4,5,6-Tetramethyl-[1,3]dioxan
• CAS: 20615-14-9
• 化学式: C₈H₁₆O₂
• 分子量: 144.214
• InChiKey: POKOYHKEEWSKDN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  10
• 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：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-丁烯 、 乙醛 在 1,2-二氯乙烷 、 zinc(II) chloride 作用下， 生成 2,4,5,6-tetramethyl-1,3-dioxane
  参考文献：
  名称：

  Farberow et al., Zhurnal Obshchei Khimii, 1957, vol. 27, p. 2806,2813, 2814; engl. Ausg. S.2841, 2847, 2848

  摘要：

  DOI：

文献信息

• Transformation of 1,3-, 1,4- and 1,5-diols over perfluorinated resinsulfonic acids (Nafion-H)
  作者：Imre Bucsi、Árpád Molnár、Mihály Bartók、George A. Olah

  DOI：10.1016/0040-4020(95)00053-b

  日期：1995.3

  The transformations of 1,3-, 1,4- and 1,5-diols over perfluorinated resinsulfonic acids (Nafion-H) were studied and correlations were examined between the structure of the investigated diols, the possible transformation directions and the catalytic properties of Nafion-H. Comparisons were also made between the catalytic properties of Nafion-H and zeolites. The characteristic transformations of 1,3-diols depend on their structure. 1,3-Propanediol undergoes dehydration via 1,2-elimination and yields oligomers via intermolecular dehydration. 1,3-Diols with an alkyl substituent on the carbon between those bearing the OH groups undergo 1,2-elimination yielding unsaturated alcohols and dienes, and give carbonyl compounds via the loss of water and hydride shifts analogous to the pinacol rearrangement. The strong acidity of Nafion-H and the lack of strong basic sites are advantageous for the latter reaction. 1,3-Diols with two substituents at this position mainly yield fragmentation products. Stereoselective cyclodehydration to the corresponding oxacycloalkanes is the characteristic transformation of 1,4- and 1,5-diols over Nafion-H.
• LIQUID CRYSTAL MATERIAL, LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY
  申请人：Shibahara Seiji

  公开号：US20090168009A1

  公开（公告）日：2009-07-02

  A liquid crystal display device capable of obtaining good display characteristics and good response characteristics is provided. A liquid crystal material being a paraelectric material, the liquid crystal material includes: a liquid crystal molecule exhibiting a nematic liquid crystal phase at room temperature and including one or more cyclic structures; and a bent-shaped molecule including cyclic structures which are large in number compared to the cyclic structures included in the liquid crystal molecule.
• LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
  申请人：SAMSUNG DISPLAY CO., LTD.

  公开号：US20170204331A1

  公开（公告）日：2017-07-20

  A liquid crystal composition and a liquid crystal display, the composition including a liquid crystal compound represented by Chemical Formula 1 below:
• US7838089B2
  申请人：——

  公开号：US7838089B2

  公开（公告）日：2010-11-23
• Farberow et al., Zhurnal Obshchei Khimii, 1957, vol. 27, p. 2806,2813, 2814; engl. Ausg. S.2841, 2847, 2848
  作者：Farberow et al.

  DOI：——

  日期：——