2,7-diamino-dibenzofuran | 24229-85-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 2,7-diamino-dibenzofuran
• 英文别名: Dibenzofuran-2,7-diamine
• CAS: 24229-85-4
• 化学式: C₁₂H₁₀N₂O
• mdl: MFCD00092288
• 分子量: 198.224
• InChiKey: YCDUMXSNRLISHV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  65.2
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,7-diamino-dibenzofuran 在 硝酸 、 乙酸酐 、 溶剂黄146 作用下， 生成 2,7-bis-acetylamino-3-nitro-dibenzofuran
  参考文献：
  名称：

  Yamashiro, Nippon Kagaku Kaishi/Journal of the Chemical Society of Japan, 1938, vol. 59, p. 186,190

  摘要：

  DOI：
• 作为产物：
  描述：

  3-硝基双苯并呋喃 在 盐酸 、 ammonium hydroxide 、 tin 、 溴 、 溶剂黄146 、 copper(I) bromide 作用下， 生成 2,7-diamino-dibenzofuran
  参考文献：
  名称：

  Dibenzofuran. III. Nuclear Substitutions

  摘要：

  DOI：

  10.1021/ja01326a081

文献信息

• Material for liquid crystal aligning and liquid crystal displays made by using the same
  申请人：Tsutsui Kimiaki

  公开号：US20060051525A1

  公开（公告）日：2006-03-09

  To provide a liquid crystal aligning agent useful to obtain a liquid crystal alignment film which exhibits a high voltage retention characteristic even under high temperature conditions and which has a low accumulation charge, and a liquid crystal display device which is less susceptible to lowering of contrast or to image persistence. A liquid crystal aligning agent comprising at least one selected from a polyamic acid obtained by reactive polymerization of a tetracarboxylic dianhydride component with a diamine component, and a polyimide obtained by cyclodehydration of the polyamic acid, characterized in that at least part of the tetracarboxylic dianhydride component is a tetracarboxylic dianhydride having an alicyclic structure or an aliphatic structure, and at least part of the diamine component is a diamine represented by the following formula (1): (wherein two among R 1 to R 10 are primary amino groups, and the rest are hydrogen atoms or monovalent organic groups other than primary amino groups, provided that they may be the same or different from one another), and a liquid crystal display device having a liquid crystal alignment film obtained from this liquid crystal aligning agent.

  提供一种液晶定向剂，用于获得一种液晶定向膜，该膜即使在高温条件下也具有高电压保持特性且具有低积累电荷，并且液晶显示装置不易降低对比度或出现图像残留。该液晶定向剂包括至少选自通过四羧酸二酐组分与二胺组分的反应聚合获得的聚酰亚胺酸和通过聚酰亚胺酸的环化脱水获得的聚酰亚胺，其特征在于四羧酸二酐组分的至少一部分是具有脂环结构或脂肪族结构的四羧酸二酐，而二胺组分的至少一部分是由以下公式（1）表示的二胺：（其中R1到R10中的两个是一级氨基，其余为氢原子或除一级氨基外的单价有机基团，但它们可以相同或不同），以及使用该液晶定向剂获得的液晶显示装置的液晶定向膜。
• Liquid-Crystal Aligning Agent, Liquid-Crystal Alignment Film Comprising the Same, and Liquid-Crystal Element
  申请人：Tsutsui Kimiaki

  公开号：US20070224370A1

  公开（公告）日：2007-09-27

  It is to provide a liquid crystal aligning agent capable of forming a liquid crystal alignment film having favorable electrical characteristics, and excellent in the storage stability and the productivity. A liquid crystal aligning agent comprising at least one member selected from a polyamic acid obtained by polymerization of a diamine component with a tetracarboxylic dianhydride component, and a polyimide obtained by cyclodehydration of the polyamic acid, characterized in that the diamine component contains at least one of diamines represented by the following formula [1]: H 2 N-A-R—NH 2 [1] wherein A is a bivalent organic group comprising a benzene ring or an aromatic condensed ring, provided that one or more optional hydrogen atoms in the benzene ring or the aromatic condensed ring may be substituted by a monovalent organic group other than an amino group, and R is a C 1-10 bivalent saturated hydrocarbon group.

  本发明旨在提供一种液晶取向剂，能够形成具有良好电学特性、储存稳定性和生产率优异的液晶取向膜。液晶取向剂包括至少一种由二胺组分与四羧酸二酐组分聚合得到的聚酰胺酸和由聚酰胺酸环状脱水得到的聚酰亚胺，其特征在于二胺组分中包含下式[1]所表示的二胺之一：H2N-A-R—NH2[1]其中，A是一个双价的有机基团，包括苯环或芳香环，并且苯环或芳香环中的一个或多个可选氢原子可以被除氨基以外的一价有机基团取代，R是一个C1-10双价饱和碳氢基团。
• Polyimide adhesives, coats and prepreg
  申请人：MITSUI TOATSU CHEMICALS, Inc.

  公开号：EP0179604A2

  公开（公告）日：1986-04-30

  This invention relates to a polyimide powder in use for adhesion and/or coat forming and to a method of preparing said powder, wherein polyamic-acid is chemically imidized. which is obtained by reacting tetracarboxylic acid dianhydride with diamine in organic solvents. This invention further relates to a method for adhesion, and coat forming by using said polyimide powder. This invention still further relates to a method for preparing prepreg by using said polyimide powder, and a method for adhesion and preparing molded laminates by using said prepreg.

  本发明涉及一种用于粘合和/或涂层成型的聚酰亚胺粉末，以及制备所述粉末的方法，其中聚酰胺酸是化学亚胺化的。 本发明进一步涉及一种使用所述聚酰亚胺粉末进行粘合和涂层成型的方法。 本发明还进一步涉及一种使用所述聚酰亚胺粉末制备预浸料的方法，以及一种使用所述预浸料进行粘合和制备模压层压板的方法。
• Preparation of silicon-containing polyimide precursor and cured polyimides obtained therefrom
  申请人：CHISSO CORPORATION

  公开号：EP0330456A1

  公开（公告）日：1989-08-30

  A process for the production of silicon-containing polyimides precursors comprising reacting a silicon-containing polyimide precursor having a logorithmic viscosity number of from 0.05 to 5 dl/g (measured at a temperature of 30 ± 0.01°C at a concentration of 0.5 g/dl), which process comprises reacting: A¹ mol of a fluorine-containing diacid anhydride of the formula: (in which m is 0 or 1); A² mol of a diacid anhydride of the formula: (in which R¹ is a tetravalent carbocyclic aromatic group or heterocyclic group); B¹ mol of a fluorine-containing diamine of the formula: (in which each n is 0 or 1); B² mol of a diamine of the formula: H₂N - R² - NH₂      (IV) (in which R² is an aliphatic group containing at least two carbon atoms, an alicyclic group, an araliphatic group, a carbocyclic aromatic group, a heterocyclic group or a polysiloxane group); and C mol of an aminosilane of the formula: in which s is an integer from 1 to 4; each R⁴ is a C₁-C₆ alkyl group, a phenyl group, or an alkyl-substituted phenyl group containing from 7 to 12 carbon atoms; each X is a halogen atom or an alkoxy or acetoxy group; and k is from 1 to 3); the ratios of A¹, A², B¹, B² and C meeting the requirements of formulae (VI), (VII), and (VIII) below:

  一种生产含硅聚酰亚胺前体的工艺，包括使对数粘度值为 0.05 至 5 dl/g 的含硅聚酰亚胺前体进行反应（在温度为 30 ± 0.01℃、浓度为 0.5 g/dl 的条件下测量），该工艺包括使以下物质进行反应： A¹ mol 含氟二酸酐，其式为 (其中 m 为 0 或 1）； A² mol 式中的二酸酐： (其中 R¹ 为四价碳环芳香基团或杂环基团）； B¹ mol 式中的含氟二胺： (其中每个 n 为 0 或 1）； B² mol 式中的二胺： H₂N - R² - NH₂ (IV) (其中 R² 是至少含有两个碳原子的脂肪族基团、脂环族基团、脂肪族基团、碳环芳香族基团、杂环基团或聚硅氧烷基团）；以及 C mol 式中的氨基硅烷： 其中 s 为 1 至 4 的整数； 每个 R⁴ 是含有 7 至 12 个碳原子的 C₁-C₆ 烷基、苯基或烷基取代的苯基； 每个 X 是卤素原子或烷氧基或乙酰氧基；以及 k 为 1 至 3）； A¹、A²、B¹、B² 和 C 的比例符合下式(VI)、(VII)和(VIII)的要求：
• Photosensitive Polymer
  申请人：Chisso Corporation

  公开号：EP0337698A2

  公开（公告）日：1989-10-18

  A photosensitive polymer has an inherent viscosity of 0.1 to 5 dl/g and contains repeating units of the formula: in which R¹ is a trivalent or tetravalent carbocyclic aromatic group or hetrocyclic group; R² is an aliphatic group having at least 2 carbon atoms, an alicyclic group, an aromatic aliphatic group, a carbocyclic aromatic group, a heterocyclic or a polysiloxane group; R³ is a monovalent organic group having a photosensitive unsaturated group; R⁴ is a monovalent organic group; m is 1 or 2; n is 0 or 1; and the sum of m and n is 1 or 2. The polymer may be prepared by reacting a poly­(amide)isoimide with a secondary amine containing a photosensitive unsaturated group. A photosensitive polymer composition comprises the polymer, a photo­polymerization initiator, a sensitizer, a diazide compound, a compound having a carbon-carbon double bond and a solvent. A method for forming a patterned poly(amide)imide film comprises applying the composition to a substrate, prebaking it, irradiating it through a patterned mask, developing, drying and postbaking it at a temperature of 200 to 500°C.

  一种光敏聚合物的固有粘度为 0.1 至 5 dl/g，含有式中的重复单元： 其中 R¹ 是三价或四价碳环芳香基团或七环基团；R² 是至少有 2 个碳原子的脂族基团、脂环基团、芳香脂族基团、碳环芳香基团、杂环基团或聚硅氧烷基团；R³ 是具有光敏不饱和基团的一价有机基团；R⁴ 是一价有机基团；m 是 1 或 2；n 是 0 或 1；m 与 n 之和是 1 或 2。 聚合物可通过聚（酰胺）异亚胺与含有光敏不饱和基团的仲胺反应制备。光敏聚合物组合物由聚合物、光聚合引发剂、敏化剂、重氮化物、具有碳碳双键的化合物和溶剂组成。形成图案化聚（酰胺）酰亚胺薄膜的方法包括将组合物涂在基底上，预烘烤，通过图案化掩膜照射，显影，干燥，在 200 至 500°C 的温度下进行后烘烤。