4,4'-(hexafluoroisopropylidene)diphthalic anhydride

• 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: 4,4'-(hexafluoroisopropylidene)diphthalic anhydride
• 英文别名: 4-[2-(1,3-Dioxo-2-benzofuran-5-yl)-1,1,1,3,3,3-hexafluoropropan-2-yl]-2-benzofuran-1,3-dione
• 化学式: C₁₉H₆F₆O₆
• 分子量: 444.243
• InChiKey: YAAUMCHVDWQOKP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  31
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.16
• 拓扑面积：
  86.7
• 氢给体数：
  0
• 氢受体数：
  12

反应信息

• 作为反应物：
  描述：

  4,4'-(hexafluoroisopropylidene)diphthalic anhydride 、 1,8-二氨基萘 以 N,N-二甲基甲酰胺 为溶剂， 反应 4.0h， 生成
  参考文献：
  名称：

  溶液相序对合成am衍生物异构体混合物和分离异构体光谱性质和电氧化反应性的影响

  摘要：

  我们介绍了idine衍生物的合成以及不同双（邻苯二甲酸酐）与1,8-二胺萘（1,8DAN）反应后获得的异构体的分离。分离的4'-（4,4'-异丙基二烯二苯氧基）双（邻苯二甲酸酐）（BPADA）的异构体在光学和电化学性质上存在显着差异，由于电氧化反应性发生了明显变化。计算出的HOMO能量和该轨道的可视化表明其在过碘代单元上的定位。因此，还进行了BPADA与2，3-二氨基萘的缩合反应，以得到萘并[2，3-d]咪唑单元作为末端基团，以比较其氧化反应性与哌啶链段。可以确认，由于电化学氧化作用，仅含哌啶的化合物具有反应性。然而，在含有异构体混合物的溶液中，我们只能得到可溶性产物。继而，在仅包含一种类型的异构体的溶液中，异构体的分离和电氧化导致产生固体和氧化还原活性产物。

  DOI：

  10.1016/j.dyepig.2020.108309

文献信息

• Asymmetric dianhyrdrides and methods of making the same
  申请人：The United States of Americas as represented by the Administrator of NASA

  公开号：US10059682B1

  公开（公告）日：2018-08-28

  A method for preparing asymmetric 3,4′-(hexafluroisopropylidene) dipthalic anhydride (a-6FDA) and asymmetric 3,4′-(methylene)diphthalic anhydride (a-MDPA) from asymmetric 2,3,3′,4′-benzophenone dianhydride (a-BTDA). First, a-BTDA is converted to its corresponding N-alkyl or N-phenyl bisimides by reacting with either methylamine or aniline. The sequential addition of two trifluoromethyl (CF3) groups to the carbonyl unit of a-BTDA produce the corresponding bisimides of asymmetric 6FDA, which is hydrolyzed to the asymmetric 6F-tetracarboxylic acid followed by cyclodehydration to obtain asymmetric 6F-dianhydride (a-6FDA). Separately, the carbonyl unit of bisimides of a-BTDA is reduced to a methylene unit to afford the corresponding bisimides of asymmetric 3,4′-(methylene)diphthalic anhydride, which is hydrolyzed to the asymmetric methylene tetracarboxylic acid followed by cyclodehydration to obtain 3,4′-(methylene)diphthalic anhydride (a-MDPA).

  一种制备不对称3,4'-(六氟异丙基亚甲基)二苯酐(a-6FDA)和不对称3,4'-(亚甲基)二苯酐(a-MDPA)的方法，从不对称2,3,3',4'-苯并酮二酸酐(a-BTDA)开始。首先，a-BTDA通过与甲胺或苯胺反应转化为相应的N-烷基或N-苯基双亚胺。将两个三氟甲基(CF3)依次加到a-BTDA的羰基单元上，产生不对称6FDA的相应双亚胺，其水解为不对称6F-四羧酸，随后通过环缩脱水反应获得不对称6F-二酸酐(a-6FDA)。另外，将a-BTDA的双亚胺的羰基单元还原为亚甲基单元，可得到相应的不对称3,4'-(亚甲基)二苯酐的双亚胺，其水解为不对称亚甲基四羧酸，随后通过环缩脱水反应获得3,4'-(亚甲基)二苯酐(a-MDPA)。
• COMPOSITION FOR PREPARING POLYIMIDE, POLYIMIDE, AND ARTICLE INCLUDING SAME
  申请人：SAMSUNG ELECTRONICS CO., LTD.

  公开号：US20150147554A1

  公开（公告）日：2015-05-28

  A composition for preparing a polyimide including a tetracarboxylic dianhydride mixture including a tetracarboxylic dianhydride represented by Chemical Formula 1A, Chemical Formula 1B, or a combination thereof, a tetracarboxylic dianhydride represented by Chemical Formula 2, and a diamine represented by Chemical Formula 3: NH 2 —R 1 —NH 2 Chemical Formula 3 wherein in Chemical Formulae 1A, 1B, 2 and 3, definitions of groups and substituents are described in the specification.
• COMPOSITION OF PREPARING POLYIMIDE-INORGANIC PARTICLE COMPOSITE, POLYIMIDE-INORGANIC PARTICLE COMPOSITE, AND ARTICLE INCLUDING POLYIMIDE-INORGANIC PARTICLE COMPOSITE
  申请人：SAMSUNG ELECTRONICS CO.

  公开号：US20160024272A1

  公开（公告）日：2016-01-28

  A composition for preparing a polyimide-inorganic particle composite including a reaction product of a tetracarboxylic dianhydride mixture and a diamine, and a precursor of an inorganic particle, wherein the tetracarboxylic dianhydride mixture includes a tetracarboxylic dianhydride represented by Chemical Formula 1, and a tetracarboxylic dianhydride represented by Chemical Formula 2, and wherein the diamine is represented by Chemical Formula 3: wherein in Chemical Formulae 1 to 3, groups and variable as described in the specification.
• POLYIMIDE FILM, METHOD FOR PRODUCING POLYIMIDE FILM, AND POLYIMIDE PRECURSOR RESIN COMPOSITION
  申请人：DAI NIPPON PRINTING CO., LTD.

  公开号：US20190092913A1

  公开（公告）日：2019-03-28

  A resin film has improved rigidity and flex resistance, and reduced optical distortion. A polyimide film has a polyimide containing an aromatic ring, and inorganic particles having a smaller refractive index in a major axis direction than an average refractive index in a direction perpendicular to the major axis direction, wherein, when the polyimide film is monotonically heated from 25° C. at 10° C./min, a size shrinkage ratio represented by the following formula in at least one direction is 0.1% or more at at least one temperature in a range of from 250° C. to 400° C.: size shrinkage ratio (%)=[(size at 25° C.)−(size after heating)}/(size at 25° C.)]×100; wherein a birefringence index in a thickness direction is 0.020 or less at a wavelength of 590 nm; and wherein a total light transmittance measured in accordance with JIS K7361-1 is 80% or more at a thickness of 10 μm.
• US7381849B1
  申请人：——

  公开号：US7381849B1

  公开（公告）日：2008-06-03