Dimethylcyclobutan-tetracarbonsaeure-dianhydrid | 93336-09-5

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: Dimethylcyclobutan-tetracarbonsaeure-dianhydrid
• 英文别名: 1,2-Dimethyl-4,9-dioxatricyclo[5.3.0.02,6]decane-3,5,8,10-tetrone
• CAS: 93336-09-5
• 化学式: C₁₀H₈O₆
• 分子量: 224.17
• InChiKey: FAMDEDZQIIONJL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.5
• 重原子数：
  16
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  86.7
• 氢给体数：
  0
• 氢受体数：
  6

文献信息

• Liquid crystal display device
  申请人：JNC CORPORATION

  公开号：US10041000B2

  公开（公告）日：2018-08-07

  The subject is to show liquid crystal display device that has characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. The disclosure relates to a liquid crystal display device including an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates.

  本发明的主题是显示具有响应时间短、电压保持比大、阈值电压低、对比度大、使用寿命长和闪烁率小等特性的液晶显示装置。本公开涉及一种液晶显示装置，包括形成在一对相对的基板中的一个或两个上的电极组，以及连接到电极组的多个有源器件，和形成在这对基板的相对表面上的液晶配向膜，以及夹在这对基板之间的液晶成分。
• Liquid crystal aligning agent, liquid crystal alignment film, method for producing same, liquid crystal element and polymer
  申请人：JSR CORPORATION

  公开号：US11061282B2

  公开（公告）日：2021-07-13

  According to the present invention, a liquid crystal aligning agent is configured to contain a polymer (P) which has at least one partial structure selected from the group consisting of a partial structure represented by formula (1) and a partial structure represented by formula (2). In formula (1) and formula (2), X1 represents a tetravalent organic group that has a cyclobutane ring structure, while having at least one substituent in the ring portion of the cyclobutane ring; X2 represents a divalent organic group of a specific structure which has an aliphatic structure and a divalent nitrogen-containing heterocyclic group; and each of R5 and R6 independently represents a hydrogen atom or a monovalent organic group having 1-6 carbon atoms.

  根据本发明，液晶对准剂被配置为含有一种聚合物（P），该聚合物具有至少一种部分结构，该部分结构选自由式（1）表示的部分结构和式(2)表示的部分结构组成的组。在式(1)和式(2)中，X1代表具有环丁烷环结构的四价有机基团，同时在环丁烷环的环部分具有至少一个取代基；X2代表具有特定结构的二价有机基团，其具有脂肪族结构和二价含氮杂环基团；R5和R6各自独立地代表氢原子或具有1-6个碳原子的一价有机基团。
• CAGE-SHAPED CYCLOBUTANOIC DIANHYDRIDES AND PROCESS FOR PRODUCTION THEREOF
  申请人：Nissan Chemical Industries, Ltd.

  公开号：EP1813592B1

  公开（公告）日：2012-10-10
• LIQUID CRYSTAL DISPLAY ELEMENT
  申请人：JNC Corporation

  公开号：EP3163368B1

  公开（公告）日：2019-06-26
• Cage-shaped cyclobutanoic dianhydrides and process for production thereof
  申请人：Suzuki Hideo

  公开号：US20090012318A1

  公开（公告）日：2009-01-08

  A process which comprises reacting a 1,2,3,4-cyclobutanetetracarboxylic-1,2:3,4-dianhydride [1] with an alcohol [2] in the presence of an acid catalyst to obtain a compound [3], isomerizing the compound [3] with a base catalyst into a compound [4], reacting the compound [4] with an organic acid to obtain a compound [5], and reacting the compound [5] with a dehydrating agent to obtain a 1,2,3,4-cyclobutanetetracarboxylic-1,3:2,4-dianhydride: wherein R 1 and R 2 are each independently hydrogen, halogeno, alkyl of 1 to 10 carbon atoms, halogenated alkyl of 1 to 10 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, phenyl, or cyano; and R 3 is alkyl of 1 to 10 carbon atoms.