1,2,3,4-四甲基-1,2,3,4-环丁烷四羧酸二酐 | 7433-83-2

• 物质功能分类: 生物 - 细胞培养 - 添加剂
• 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
• 中文名称: 1,2,3,4-四甲基-1,2,3,4-环丁烷四羧酸二酐
• 中文别名: 1,2,3,4-四甲基1,2,3,4-环丁烷四羧酸二酐
• 英文名称: 1,2,3,4-Tetramethylcyclobutane-1,2,3,4-tetracarboxylic acid dianhydride
• 英文别名: 1,2,3,4-tetramethyl-1,2,3,4-cyclobutanetetracarboxylic dianhydride；1,2,3,4-Tetramethylcyclobutan-1,2,3,4-tetracarbonsaeure-dianhydrid；Tetramethylcyclobutan-tetracarbonsaeure-dianhydrid；3A,3b,6a,6b-tetramethylcyclobuta[1,2-c:3,4-c']difuran-1,3,4,6(3aH,3bH,6aH,6bH)-tetraone；1,2,6,7-tetramethyl-4,9-dioxatricyclo[5.3.0.02,6]decane-3,5,8,10-tetrone
• CAS: 7433-83-2；64198-16-9
• 化学式: C₁₂H₁₂O₆
• 分子量: 252.224
• InChiKey: GTDPSWPPOUPBNX-UHFFFAOYSA-N

物化性质

• 熔点：
  380°C(lit.)

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  18
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  86.7
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  2,3-二甲基马来酸酐 以90%的产率得到
  参考文献：
  名称：

  SHAJXRAZIEVA V. SH.; ENIKEEV R. S.; TOLSTIKOV G. A., ORGAN. SOEDIN. SERY, T. 2, RIGA 1980, 150-156

  摘要：

  DOI：

文献信息

• Inkjet ink
  申请人：Satou Hiroyuki

  公开号：US20080085361A1

  公开（公告）日：2008-04-10

  The invention relates to a method for manufacturing an inkjet ink including a polyamic acid (A), including a step of at least reacting one or more compounds selected from the group of a monoamine (a3) and a compound having one acid anhydride group (a4) with a compound having two or more acid anhydride groups (a1) and a diamine (a2).

  该发明涉及一种制造喷墨墨水的方法，包括至少将来自单胺（a3）和具有一个酸酐基团（a4）的化合物组合的群体中选择的一个或多个化合物与具有两个或更多酸酐基团（a1）和二胺（a2）反应的聚酰胺酸（A）。
• Liquid crystal aligning agent for photoalignment, liquid crystal alignment film and liquid crystal display device using it, and diamine and polymer
  申请人：JNC CORPORATION

  公开号：US10968392B2

  公开（公告）日：2021-04-06

  Provided are a liquid crystal alignment film capable of being given anisotropy through photoalignment and stable to light, and a liquid crystal display device capable of keeping a high voltage holding ratio without degradation of display quality even when exposed to strong light for a long period of time. To provide these, used is a liquid crystal aligning agent for photoalignment which contains a polymer having a structural unit containing a photoreactive structure and in which the structural unit containing a photoreactive structure undergoes chemical reaction by heating.

  提供了一种液晶取向膜，能够通过光取向获得各向异性，并且对光稳定，并且提供了一种液晶显示装置，即使长时间暴露在强光下也能保持高电压保持比率而不会降低显示质量。为了实现这些，使用了一种用于光取向的液晶取向剂，其中包含具有光反应结构的结构单元的聚合物，并且具有光反应结构的结构单元通过加热发生化学反应。
• LIQUID CRYSTAL ALIGNING AGENT
  申请人：WAKO PURE CHEMICAL INDUSTRIES, LTD.

  公开号：US20140378645A1

  公开（公告）日：2014-12-25

  A problem of the present invention is to provide a liquid crystal aligning agent which never deteriorates even in a method where UV is irradiated such as a liquid crystal dropping method or the like, and is capable of forming a liquid crystal alignment film having high UV resistance. The present invention relates to, (I) Compound represented by the following general formula [1] (wherein n represents an integer of 1 to 6; and R represents an alkyl group having 8 to 20 carbon atoms or a group having a steroid skeleton), (II) Polyamic acid or a polyimide obtained by a reaction of (A) compound represented by the above general formula [1], and the following compounds (B) and (C), (B) compound represented by the following general formula [2], (wherein R 1 represents an alkyl group having 1 to 6 carbon atoms, or an arylalkyl group having 7 to 12 carbon atoms, p represents an integer of 0 to 4, and Y represents an amino group or a 4-aminophenyl group), (C) compound represented by the following general formula [3] or [4], (wherein Z represents a tetravalent hydrocarbon group), along with (III) Liquid crystal aligning agent comprising the polyamic acid or the polyimide obtained by a reaction of the above compounds (A), (B) and (C).

  本发明的问题是提供一种液晶取向剂，即使在诸如液晶滴落法等UV照射的方法中也不会恶化，并且能够形成具有高UV抵抗力的液晶取向膜。本发明涉及以下内容：(I)由下列通式[1]表示的化合物（其中n表示1至6的整数；R表示具有8至20个碳原子的烷基或具有类固醇骨架的基）；(II)由化合物（A）和以下化合物（B）和（C）的反应获得的聚酰胺酸或聚酰亚胺；(B)由下列通式[2]表示的化合物（其中R1表示具有1至6个碳原子的烷基或具有7至12个碳原子的芳基烷基；p表示0至4的整数；Y表示氨基或4-氨基苯基）；(C)由下列通式[3]或[4]表示的化合物（其中Z表示四价的碳氢基团）；以及(III)包括上述化合物（A）、（B）和（C）的聚酰胺酸或聚酰亚胺的液晶取向剂。
• COMPOSITION FOR FORMING LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY ELEMENT
  申请人：SOKI CORPORATION

  公开号：US20150056367A1

  公开（公告）日：2015-02-26

  The present invention, which enables to align a liquid crystal molecule, when no voltage is applied thereto, and also to control pretilt angle of the liquid crystal molecule, relates to a composition for a liquid crystal alignment film comprising components represented by the following (A) to (D): (A) a meta-phenylene diamine derivative represented by the general formula [1]; (B) a meta-phenylene diamine derivative represented by the general formula [2]; (C) a para-arylene diamine represented by the general formula [3]; (D) a tetracarboxylic acid represented by the general formula [4] or a tetracarboxylic acid anhydride represented by the general formula [4′]; (wherein R 1 represents an alkyl group having 1 to 6 carbon atoms or the like, R 2 represents an alkyl group having 8 to 20 carbon atoms or the like, t moieties of R a represent an alkyl group having 1 to 3 carbon atoms or the like, n represents an integer of 1 to 3, t represents an integer of 0 to 4, T represents an oxygen atom or the like, Y represents an amino group, and Z represents a tetravalent hydrocarbon group.).

  本发明涉及一种液晶取向膜组合物，包括以下（A）至（D）的组分，能够在不施加电压的情况下使液晶分子对齐，并控制液晶分子的预倾角：（A）由通式[1]表示的间苯二胺衍生物；（B）由通式[2]表示的间苯二胺衍生物；（C）由通式[3]表示的对芳二胺；（D）由通式[4]表示的四羧酸或由通式[4']表示的四羧酸酐；（其中，R1表示具有1至6个碳原子的烷基或类似物，R2表示具有8至20个碳原子的烷基或类似物，R的t个官能团表示具有1至3个碳原子的烷基或类似物，n表示1至3的整数，t表示0至4的整数，T表示氧原子或类似物，Y表示氨基，Z表示四价碳氢基团）。
• LIQUID-CRYSTAL DISPLAY ELEMENT
  申请人：DIC Corporation

  公开号：EP3064991A1

  公开（公告）日：2016-09-07

  An object of the present invention is to provide a liquid-crystal display element using a liquid-crystal composition having negative dielectric anisotropy, capable of realizing excellent display characteristics by being used in an FFS mode liquid-crystal display element, without deteriorating various characteristics as a liquid-crystal display element such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, nematic phase stability at low temperatures, and γ1, and burn-in characteristics of a display element. A liquid-crystal display element containing at least one compound selected from the group consisting of compounds by the following General Formula (I) is provided: wherein each of R1 and R2 independently represents an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms, A represents a 1,4-phenylene group or a trans-1,4-cyclohexylene group, k represents 1 or 2, and in a case where k is 2, two A's may be the same as or different from each other.

  本发明的目的是提供一种使用具有负介电各向异性的液晶组合物的液晶显示元件，该液晶组合物能够通过用于全氟辛烷磺酸模式液晶显示元件而实现优异的显示特性，同时不会降低作为液晶显示元件的各种特性，例如介电各向异性、粘度、向列相上限温度、向列相在低温下的稳定性和γ1，以及显示元件的烧损特性。本发明提供了一种液晶显示元件，其中含有至少一种选自由以下通式（I）化合物组成的化合物组的化合物： 其中 R1 和 R2 各自独立地代表具有 1 至 8 个碳原子的烷基、具有 2 至 8 个碳原子的烯基、具有 1 至 8 个碳原子的烷氧基或具有 2 至 8 个碳原子的烯氧基，A 代表 1，4-亚苯基或反式-1，4-环己烯基，k 代表 1 或 2，在 k 为 2 的情况下，两个 A 可以相同或不同。