2,3,5,6-Norbornantetracarbonsaeure | 56677-12-4

• 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: 2,3,5,6-Norbornantetracarbonsaeure
• 英文别名: Bicyclo[2.2.1]heptane-2,3,5,6-tetracarboxylic acid
• CAS: 56677-12-4
• 化学式: C₁₁H₁₂O₈
• 分子量: 272.211
• InChiKey: CJYIPJMCGHGFNN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  149
• 氢给体数：
  4
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  重氮甲烷 、 2,3,5,6-Norbornantetracarbonsaeure 以 乙醚 、 丙酮 为溶剂， 生成 norbornane-2,3,5,6-tetracarboxylic acid tetramethyl ester
  参考文献：
  名称：

  2,3,5,6-四亚甲基-双环[2.2.1]庚烷（初步通信）†

  摘要：

  描述了标题化合物1的制备。通过比较紫外线，可以观察到两个未共轭的顺式-顺式-丁二烯生色团之间的重要跨环效应。亚甲基降冰片烷1和亚甲基降冰片烷3的光谱。紫外之间观察到差异。还简要讨论了2,3,5,6-四亚甲基-7-氧杂硼烷2和1的光谱。

  DOI：

  10.1002/hlca.19750580528

文献信息

• Polyether-modified polymers as leather auxiliaries
  申请人：Reiners Juergen

  公开号：US20050058619A1

  公开（公告）日：2005-03-17

  (Co)polymers which contain a) structural units of the general formula I in which W represents a trivalent radical from the group in which * indicates the orientation for the incorporation of the radical W into the formula I, and Z represents the radicals —OH, —O − M + or —N—R 1 R 2 , in which R 1 and R 2 , independently of one another, represent hydrogen, optionally substituted alkyl radicals, alkenyl radicals, aralkyl radicals or cycloalkyl radicals, which may be interrupted by 0 atoms, N atoms, Si atoms or amido, carbonate, urethane, urea, allophanate, biuret or isocyanurate groups or mixtures thereof, and M + represents H + or an alkali metal ion, an NH 4 ion or a primary, secondary, tertiary or quaternary aliphatic ammonium radical which preferably carries a C 1 -C 22 -alkyl or C 1 -C 22 -hydroxyalkyl group, b) at least 10 mol %, based on the units of the formula I, of structural units of the general formula Ia in which R 3 represents a hydrocarbon radical having C 1 -C 60 -atoms, preferably a saturated C 1 -C 60 -alkyl radical, in particular C 12 -C 30 -alkyl radical, and R 4 represents hydrogen or has the same meaning as R 3 , and e) polyether units having an average molecular weight of 200 - 6000 g/mol.

  聚合物包含a) 通式I的结构单元，其中W代表来自该组的三价基团，其中*表示将基团W合并到通式I中的取向，Z代表基团—OH，—O−M+或—N—R1R2，其中R1和R2独立地表示氢，可选择地取代的烷基基团，烯基基团，芳基烷基基团或环烷基基团，可以由0个原子，N原子，Si原子或酰胺，碳酸酯，脲，脲，异氰酸酯，双脲基或异氰酸酯基团或它们的混合物中断，并且M+表示H+或碱金属离子，NH4离子或一种一级，二级，三级或季铵基团，最好携带C1-C22-烷基或C1-C22-羟基烷基基团，b)至少占通式I单位的10摩尔％的通式Ia的结构单元，其中R3代表具有C1-C60原子的碳氢基团，优选为饱和的C1-C60烷基基团，特别是C12-C30烷基基团，和R4代表氢或具有与R3相同的含义，以及e) 平均分子量为200-6000g/mol的聚醚单元。
• 5-NORBORNENE-2-SPIRO-a-CYCLOALKANONE-a'-SPIRO-2''-5''-NORBORNENE AND METHOD FOR PRODUCING THE SAME
  申请人：Komatsu Shinichi

  公开号：US20120310013A1

  公开（公告）日：2012-12-06

  A 5-norbornene-2-spiro-α-cycloalkanone-α′-spiro-2″-5″-norbornene represented by the following general formula (1): [in the formula (1), R 1 s, R 2 , and R 3 each independently represent a hydrogen atom or the like, and n represents an integer of 0 to 12].

  以下是通式（1）所代表的5-去氢-2-螺-α-环烷酮-α′-螺-2″-5″-去氢螺烯：[在通式（1）中，R1s，R2和R3分别独立地表示氢原子或类似物，n表示0至12的整数]。
• Polyimides
  申请人：FUJIFILM ELECTRONIC MATERIALS U.S.A. INC.

  公开号：US11061327B2

  公开（公告）日：2021-07-13

  A polyimide polymer that includes the reaction product of: (a) at least one diamine selected from the group consisting of a diamine of Structure (Ia) and a diamine of Structure (Ib), (b) at least one diamine of Structure (II), (c) at least one tetracarboxylic acid dianhydride, and optionally (d) at least one compound containing a first functional group reactive with an amine or an anhydride and at least one second functional group selected from the group consisting of a substituted or unsubstituted alkenyl group and a substituted or unsubstituted alkynyl group. Each variable in the above formulas is defined in the specification.

  一种聚酰亚胺聚合物，包括以下反应产物：(a)至少一种从结构式(Ia)和结构式(Ib)组成的二胺中选择的二胺，(b)至少一种结构式(II)的二胺，(c)至少一种四羧酸二酐，以及可选地(d)至少一种含有第一官能团与胺或酸酐反应的化合物，以及至少一种从取代或未取代的烯烃基和取代或未取代的炔基中选择的第二官能团。上述公式中的每个变量在说明书中有定义。
• 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。
• POLYIMIDE RESIN COMPOSITION AND LAMINATE INCLUDING POLYIMIDE RESIN COMPOSITION
  申请人：Iida Kenji

  公开号：US20130288120A1

  公开（公告）日：2013-10-31

  To provide a resin composition that contains a solvent-soluble polyimide and can provide a film exhibiting high viscoelasticity and flexibility at high temperatures. To attain this, a polyimide resin composition is provided that includes a polyimide having a polycondensation unit of a tetracarboxylic acid dianhydride and a diamine, wherein the tetracarboxylic acid dianhydride includes an (α1) tetracarboxylic acid dianhydride represented by general formula (1), or the diamine includes an (β1) aromatic diamine represented by general formula (2), the diamine includes an (β2) aliphatic diamine represented by general formula (3) or (4), a total amour of the (α1) tetracarboxylic acid dianhydride and the (β1) aromatic diamine is 5 to 49 mol % with respect to a total amount of the tetracarboxylic acid dianhydride and the diamine, and an amine equivalent of the polyimide is 4,000 to 20,000.

  提供一种含有可溶于溶剂的聚酰亚胺的树脂组合物，能够在高温下提供高粘弹性和柔性的薄膜。为实现这一目标，提供了一种聚酰亚胺树脂组合物，其中包括具有四羧酸二酐和二胺的聚酰亚胺，其中所述的四羧酸二酐包括由通式（1）表示的（α1）四羧酸二酐，或所述的二胺包括由通式（2）表示的（β1）芳香族二胺，所述的二胺包括由通式（3）或（4）表示的（β2）脂肪族二胺，所述（α1）四羧酸二酐和（β1）芳香族二胺的总量相对于四羧酸二酐和二胺的总量为5至49摩尔％，聚酰亚胺的胺当量为4,000至20,000。