dibenzofuran-2,8-dicarboxylic acid | 5001-62-7

• 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: dibenzofuran-2,8-dicarboxylic acid
• 英文别名: Dibenzofuran-2,8-dicarbonsaeure；2,8-Dibenzofurandicarboxylic acid
• CAS: 5001-62-7
• 化学式: C₁₄H₈O₅
• 分子量: 256.215
• InChiKey: RBLSQHNMLLTHMH-UHFFFAOYSA-N

物化性质

• 熔点：
  >360 °C
• 沸点：
  560.8±30.0 °C(Predicted)
• 密度：
  1.547±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  87.7
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  dibenzofuran-2,8-dicarboxylic acid 生成 dibenzofuran-2,8-dicarboxylic acid bis-(2-diethylamino-ethyl ester); dihydrochloride
  参考文献：
  名称：

  Heterocyclic Local Anesthetics. Carbazole, Dibenzofuran and Dibenzothiophene Derivatives¹

  摘要：

  DOI：

  10.1021/ja01860a020
• 作为产物：
  描述：

  2,8 - 二溴二苯并呋喃 在 正丁基锂 、 乙醚 、 苯 作用下， 生成 dibenzofuran-2,8-dicarboxylic acid
  参考文献：
  名称：

  Dibenzofuran. XI. Substituents in the 1-Position

  摘要：

  DOI：

  10.1021/ja01875a013

文献信息

• MODIFIER FOR AROMATIC POLYESTER AND AROMATIC POLYESTER RESIN COMPOSITION COMPRISING THE SAME
  申请人：TABATA Masayoshi

  公开号：US20110224343A1

  公开（公告）日：2011-09-15

  The present invention provides a modifier for aromatic polyesters which enhances the melt fluidity of aromatic polyesters without a significant decrease in the heat resistance of the aromatic polyesters, and an aromatic polyester resin composition including the modifier for aromatic polyesters. The present invention relates to a modifier for aromatic polyesters comprising polyhydric phenol residues and residues of aromatic polycarboxylic acid, acid halide or acid anhydride thereof, and the modifier comprises a material having a structure composed of a first residue selected from the group consisting of divalent residues represented by Formula (I): —Ar—W 1 x —Ar— and by Formula (II): —Ar—, the first residues being bonded to two identical or different second residues selected from the group consisting of monovalent residues represented by Formula (III): and monovalent residues represented by Formula (IV): —O—C(O)—R 7 —.

  本发明提供了一种用于芳香族聚酯的改性剂，可以增强芳香族聚酯的熔融流动性，而不明显降低芳香族聚酯的耐热性，以及包括该改性剂的芳香族聚酯树脂组合物。本发明涉及一种用于芳香族聚酯的改性剂，包括多羟基酚残基和芳香族多羧酸、酸卤或其酸酐残基，该改性剂包括具有以下结构的材料：第一残基，选择自由式(I)所代表的二价残基：—Ar—W1x—Ar—和自由式(II)所代表的：—Ar—，第一残基与选择自由式(III)所代表的单价残基：和自由式(IV)所代表的单价残基：—O—C(O)—R7—的两个相同或不同的第二残基结合。
• Process for producing adhesive active polyester yarn and product
  申请人：ALLIED CORPORATION

  公开号：EP0043410A2

  公开（公告）日：1982-01-13

  An improvement is provided in a process for the production of polyester yarn involving spinning and drawing steps. The improvement comprises exposing the yarn subsequent to the drawing step to ultraviolet radiation, and treating the yarn with a finish composition which comprises water and a silane having the structural formula wherein n = 2 to 5. The yarn is preferably used in tire cords for the construction of pneumatic passenger tires and results in excellent adhesion of tire cord to rubber.

  对涉及纺纱和牵伸步骤的涤纶纱生产工艺进行了改进。该改进包括在牵伸步骤之后将纱线暴露在紫外线辐射下，并用一种整理组合物处理纱线，该组合物由水和结构式如下的硅烷组成 其中 n = 2 至 5。这种纱线最好用于制造充气客车轮胎的轮胎帘子线，可使轮胎帘子线与橡胶产生极佳的粘合力。
• Stabilized finish composition
  申请人：ALLIED CORPORATION

  公开号：EP0079443A2

  公开（公告）日：1983-05-25

  An oil-in-water yam finish composition, a process for treating yam therewith and yam so treated are all disclosed. The finish composition may be applied as a spin finish and/or overfinish to the yam, preferably the latter. The nonaqueous portion of the composition comprises transesterified high oleic oil and high lauric oil; polyoxyalkylene castor oil, triglycerol monooleate and/or triglycerol dioleate; decaglycerol tetraoleate and/or decaglycerol pentaoleate; 4,4' butylidene-bis(6-tert-butyl-m-cresol); and an emulsion stabilizer selected from the group consisting of a salt of dialkyl sulfosuccinate neat wherein each alkyl group comprises 8 to 18 carbon atoms, a salt of dialkyl sulfosuccinate in solution or mixture wherein each alkyl group comprises 9 to 18 carbon atoms, and a mixture of a salt of dioctyl sulfosuccinate and a salt of an aromatic carboxylic acid.

  本发明公开了一种水包油型山药表面处理组合物、一种用其处理山药的工艺以及经此处理的山药。水包油型山药表面处理组合物可以作为旋光剂和/或罩光剂涂抹在山药上，最好是后者。组合物的非水性部分包括酯交换高油酸油和高月桂油；聚氧亚烷基蓖麻油、甘油三酯单油酸酯和/或甘油三酯二油酸酯；癸甘油四油酸酯和/或癸甘油五油酸酯；4,4'亚丁基双（6-叔丁基间甲酚）；和一种乳状液稳定剂，该稳定剂选自由下列物质组成的一组：磺基琥珀酸二烷基酯（其中每个烷基由 8 至 18 个碳原子组成）、溶液或混合物中的磺基琥珀酸二烷基酯（其中每个烷基由 9 至 18 个碳原子组成）和磺基琥珀酸二辛酯与芳香族羧酸盐的混合物。
• Reinforced plastic composites
  申请人：AlliedSignal Inc.

  公开号：EP0166240A2

  公开（公告）日：1986-01-02

  A high tenacity fiber for reinforcing plastic composites, the fiber being selected from the group consisting of polyester, aliphatic polyamide, and combinations thereof. The fiber is treated with a composition consisting essentially of an organofunctional silane in an amount sufficient to achieve 0.02 to 1.0 weight percent of the silane on the fiber, and a diluent which provides for the hydrolysis of the silane to a silanol. The fiber is used to reinforce a plastic composite additionally comprising a resin matrix.

  一种用于增强塑料复合材料的高韧性纤维，该纤维选自聚酯、脂肪族聚酰胺及其组合组成的组。纤维用一种组合物处理，该组合物主要由有机官能团硅烷和稀释剂组成，前者的用量足以使硅烷在纤维上的重量百分比达到 0.02 至 1.0，后者可使硅烷水解为硅烷醇。这种纤维可用于增强由树脂基质构成的塑料复合材料。
• Fiber for reinforcing plastic composites and reinforced plastic composites therefrom
  申请人：AlliedSignal Inc.

  公开号：EP0172332A2

  公开（公告）日：1986-02-26

  A high tenacity fiber for reinforcing plastic composites, the fiber being selected from the group consisting of polyester, aliphatic polyamide, and combinations thereof. The fiber is treated with a composition comprising an aqueous solution of carboxyl-terminated, oil-free alkyd resins based on an aliphatic glycol or glycols or a glycol ether or ethers containing 2 to 12 carbon or carbon plus ether oxygens with a combination of aromatic di- or trifunctional carboxylic acids, said resins having a degree of esterificaton below the gel point of the resins to enhance stiffness of the fiber for cutting.

  一种用于增强塑料复合材料的高韧性纤维，该纤维选自由聚酯、脂肪族聚酰胺及其组合组成的组。纤维用一种组合物进行处理，该组合物包括以脂肪族乙二醇或乙二醇醚为基础的羧基封端无油醇酸树脂水溶液，该乙二醇或乙二醇醚含有 2 至 12 个碳或碳加醚氧原子，并与芳香族二官能或三官能羧酸组合，所述树脂的酯化度低于树脂的凝胶点，以增强纤维的硬度，从而提高切割性能。